Chapter 5 Resource Masters - MHSchool€¦ · Chapter 5 Test, Form 1 ... The Chapter 5 Resource Masters includes the core materials needed for Chapter 5. ... Cumulative Standardized

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ISBN: 978-0-02-105804-4MHID: 0-02-105804-0

Printed in the United States of America.

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Teacher’s Guide to Using the Chapter 5 Resource Masters .......................................iv

Chapter ResourcesChapter 5 Graphic Organizer ............................ 2Chapter 5 Student Glossary .............................. 3Chapter 5 Anticipation Guide ............................ 4Chapter 5 Chapter Game .................................. 5

Lesson 5-1 Add Tens

Reteach ............................................................. 6Skills Practice .................................................... 7Homework Practice ........................................... 8Problem-Solving Practice .................................. 9Enrich .............................................................. 10

Lesson 5-2 Count On Tens and Ones

Reteach ........................................................... 11Skills Practice .................................................. 12Homework Practice ......................................... 13Problem-Solving Practice ................................ 14Enrich .............................................................. 15

Lesson 5-3Problem-Solving Strategy:

Work Backwards

Reteach ........................................................... 16Skills Practice .................................................. 18Homework Practice ......................................... 19Enrich .............................................................. 20

Lesson 5-4 Regroup Ones as Ten


Lesson 5-5 Add One-Digit Numbers and

Two-Digit Numbers


Lesson 5-6 Add Two-Digit Numbers


Lesson 5-7 Estimate Sums


Lesson 5-8 Add Three Two-Digit Numbers


Lesson 5-9Problem-Solving Investigation:

Choose a Strategy

Reteach ........................................................... 46Skills Practice .................................................. 48Homework Practice ......................................... 49Enrich .............................................................. 50

Chapter 5 AssessmentIndividual Progress Checklist .......................... 51Chapter 5 Diagnostic Test ............................... 52Chapter 5 Pretest ............................................ 53Chapter 5 Mid-Chapter Test ............................ 54Chapter 5 Vocabulary Test .............................. 55Chapter 5 Oral Assessment ............................ 56Chapter 5 Listening Assessment .................... 58Chapter 5 Project Rubric ................................. 60Chapter 5 Foldables Rubric ............................. 61Chapter 5 Test, Form 1 .................................... 62Chapter 5 Test, Form 2A ................................. 64Chapter 5 Test, Form 2B ................................. 66Chapter 5 Test, Form 2C ................................. 68Chapter 5 Test, Form 2D ................................. 70Cumulative Standardized Test Practice ........... 72

Answers ................................................. A1–A33

CONTENTS

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Chapter ResourcesGraphic Organizer (page 2) This master is a tool designed to assist students with comprehension of grade-level concepts. You can use this graphic organizer in coordination with the appropriate lesson. While the content and layout of these tools vary, their goal is to assist students by providing a visual representation from which they can learn new concepts.

Student Glossary (page 3) This master is a study tool that presents the key vocabulary terms from the chapter. You may suggest that students highlight or star the terms they do not understand. Give this list to students before beginning Lesson 5-1. Remind them to add these pages to their mathematics study notebooks.

Anticipation Guide (page 4) This is a survey designed for use before beginning the chapter. You can use this survey to highlight what students may or may not know about the concepts in the chapter. If feasible, interview students in small groups, asking them the questions in the guide. There is space for recording how well students answer the questions before they complete the chapter. You may find it helpful to interview students a second time, after completing the chapter, to determine their progress.

Games (page 5) A game is provided to reinforce chapter concepts and may be used at appropriate times throughout the chapter.

Resources for LessonsReteach Each lesson has an associated Reteach worksheet. In general, the Reteach worksheet focuses on the same lesson content but uses a different approach, learning style, or modality than that used in the Student Edition. The Reteach worksheet closes with computational practice.

Skills Practice The Skills Practice worksheet for each lesson focuses on the computational aspect of the lesson. The Skills Practice worksheet may be helpful in providing additional practice of the skill taught in the lesson. It also contains word problems that cover the skill. Spaces for students’ answers are provided on the worksheet.

Homework Practice The Homework Practice worksheet provides an opportunity for additional computational practice. The Homework Practice worksheet includes word problems that address the skill taught in the lesson. Spaces for students’ answers are provided on the worksheet.

Problem-Solving Practice The Problem-Solving Practice worksheet presents additional reinforcement in solving word problems that applies both the concepts of the lesson and some review.

Enrich The Enrich worksheet presents activities that extend the concepts of the lesson or offer a historical or multicultural look at the lesson’s concepts. Some enrichment materials are designed to widen students’ perspectives on the mathematics they are learning.

Resources for Problem-Solving Lessons In recognition of the importance of problem-solving strategies, worksheets for problem-solving lessons follow a slightly different format. For problem-solving lessons, a two-page Reteach worksheet offers a complete model for choosing a strategy. For each Problem-Solving Strategy lesson, Reteach and Skills Practice worksheets offer reinforcement of the strategy taught in the lesson. In contrast, the Problem-Solving Investigation worksheets include a model strategy on the Reteach worksheets and provide problems requiring several alternate strategies on the practice worksheets.

Teacher’s Guide to Using the Chapter 5 Resource Masters

The Chapter 5 Resource Masters includes the core materials needed for Chapter 5. These materials include worksheets, extensions, and assessment options. The answers for these pages appear at the back of this booklet.

All of the materials found in this booklet are included for viewing and printing on the TeacherWorks Plus™ CD-ROM.

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Assessment OptionsThe assessment masters in the Chapter 5 Resource Masters offer a wide variety of assessment tools for monitoring progress as well as final assessment.

Individual Progress Checklist This checklist explains the chapter’s goals or objectives. Teachers can record whether a student’s mastery of each objective is beginning (B), developing (D), or mastered (M). The checklist includes space to record notes to parents as well as other pertinent observations.

Chapter Diagnostic Test This one-page test assesses students’ grasp of skills that are needed for success in the chapter.

Chapter Pretest This one-page quick check of the chapter’s concepts is useful for determining pacing. Performance on the pretest can help you determine which concepts can be covered quickly and which specific concepts may need additional time.

Mid-Chapter Test This one-page chapter test provides an option to assess the first half of the chapter. It includes both multiple-choice and free-response questions.

Vocabulary Test This one-page test focuses on chapter vocabulary. It is suitable for all students. It includes a list of vocabulary words and questions to assess students’ knowledge of the words.

Oral Assessment This two-page test consists of one page for teacher directions and questions and a second page for recording responses. Although this assessment is designed to be used with all students, the interview format focuses on assessing chapter content assimilated by ELL students. The variety of approaches includes solving problems using manipulatives as well as pencil and paper.

Listening Assessment This two-page assessment contains one page for teacher directions and one page for responses/recordings. This assessment, too, is suitable for all students but is designed primarily for use with students who may have difficulty reading test materials. The assessment directions progress in difficulty from simple at the beginning of the year to more extensive at the end of the year.

Chapter Project Rubric This one-page rubric is designed for use in assessing the chapter project. You may want to distribute copies of the rubric when you assign the project and use the rubric to record each student’s chapter project score.

Chapter Foldables Rubric This one-page rubric is designed to assess the chapter Foldable. It is written to the students, telling them what you will be looking for as you evaluate their completed Foldable.

Leveled Chapter Tests• Form 1 assesses basic chapter concepts

through multiple-choice questions and is designed for use with below-level students.

• Form 2A is designed for on-level students and is primarily for those who may have missed the Form 1 test. It may be used as a retest for students who received additional instruction following the Form 1 test.

• Form 2B is designed for students with a below-level command of the English language.

• Form 2C is a free-response test designed for on-level students.

• Form 2D is written for students with a below-level command of the English language.

Cumulative Standardized Test Practice This two-page test, aimed at on-level students, offers a page of multiple-choice questions and a page of free-response questions.

Answers The answers for the Anticipation Guide and Lesson Resources are provided as reduced pages with answers appearing in black. Full size line-up answer keys are provided for the Assessment Masters.

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Grade 2 2 Chapter 5

5 Graphic OrganizerSequence Chart

A suggestion for how to complete this graphic organizer can be found in the answer pages at the back of this book.

Step 1

Step 2

Sum

Tell a friend what you learned.

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Grade 2 3 Chapter 5

Vo

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5

Vocabulary Term

Definition / Description / Example

add (addition, adding)

To join together sets to find the total or sum.

5 + 2 = 7

addend Any numbers or quantities being added together. 2 + 3 = 5 2 + 3

2 is an addend and 3 is an addend.

estimate To find a number close to an exact amount.

47 + 22 = (estimate 50 + 20) = about 70. (Lesson 5.7)

regroup To take apart a number and write it in a new way.

12 ones = 1 ten and 2 ones. (Lesson 5.4)

round To change the value of a number to one that is easier to work with.

24 rounded to the nearest ten is 20. (Lesson 5.7)

sum The answer to an addition problem.2 + 4 = 6 sum

Student Glossary


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Grade 2 4 Chapter 5

5

Preparation: A set of base-ten cubes is needed for this activity.

Directions: Before you begin Chapter 5, distribute these questions to students. Read the questions along with students, giving them time to answer each. You may want to ask the same questions after students complete the chapter.

Before Chapter

After Chapter

1. What can you say about the sum of 3 + 5 and the sum of 30 + 50?

28 29 302120 22 23 24 25 26 27

2. How can you use the number line to solve 21 + 7?

3. How many are needed to show

28 + 12?

4. When is a good time to estimate a sum?

5. Cam has 4 more fish than Pam. Pam has 5 more fish than Sam. Sam has 10 fish. To find the number of Cam’s fish, whose fish should you add first?

Anticipation Guide


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Grade 2 5 Chapter 5

ReadyYou will need:

2 spinners

01

2

34

98

7

65

Tens

01

2

34

98

7

65

Ones

pencils

scoring sheets

Spin 1Spin 2

Game 1 Pat

Spin 3Sum

Terry Spin 1Spin 2

Game 2 Pat

Spin 3Sum

Terry

Spin 1Spin 2

Game 3 Pat

Spin 3Sum

Terry

SetMake two spinners like the ones shown. Then, make score sheets like the ones shown.

GO! 1. Player 1 spins each spinner to get 2 two-digit numbers. Player finds the sum of the

numbers and writes it on the score card.

2. Player 2 takes a turn.

3. Each player takes three turns. Players add the three sums. Player with the greatest sum wins the set.

4. Player who wins two sets out of three wins the game.

Chapter 5 GameAdding Spins

5

Gam

e


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Grade 2 6 Chapter 5

2NS2.3

+

2 tens + 4 tens

You can use 2 + 4 = 6 to add 20 + 40 = 60.

2 tens + 4 tens = 6 tens

20 + 40 = 60

Add. Use the addition facts and counters to help.

Reteach

Add Tens

5-1

1.+

3 tens + 1 ten

3 tens + 1 ten = tens

30 + 10 =

2.+

2 tens + 5 tens

2 tens + 5 tens = tens

20 + 50 =

3.+

3 tens + 6 tens


30 + 60 =

4.+

4 tens + 4 tens


40 + 40 =

5.+

3 tens + 2 tens


30 + 20 =

6.+

7 tens + 1 ten

7 tens + 1 ten = tens

70 + 10 =

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2NS2.35-1

Skills Practice

Add Tens

Add.

1. 6 tens + 3 tens = 9 tens 3 tens + 2 tens = tens

60 + 30 = 30 + 20 =

2. 30 50 20 10 60+ 40 + 20 + 30 + 70 + 10

3. 30 40 20 70 40+ 50 + 20 + 60 + 20 + 40

4. 50 10 30 40 80+ 10 + 20 + 30 + 50 + 10

Solve.

5. Bob sees 10 trees near his school. He sees 20 trees at the park. How many trees does he see in all?

trees

6. There are 30 kids swimming at the pool. There are 40 kids swimming at the beach. How many kids are swimming in all?

kids


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Grade 2 8 Chapter 5

2NS2.3Homework Practice

Add Tens

Add.

1. 7 tens + 2 tens = tens 2. 1 ten + 7 tens = tens

70 + 20 = 10 + 70 =

6 tens + 2 tens = tens 5 tens + 4 tens = tens

60 + 20 = 50 + 40 =

3. 20 30 40 20 50+ 40 + 40 + 30 + 60 + 30

4. 30 40 80 10 20+ 30 + 20 + 10 + 60 + 70

Add tens to solve.

5-1

5. One box holds 10 paper clips. Another box holds 50 paper clips. How many paper clips in all?

paper clips

6. Lydia collects 20 red pencils. She has twice as many black pencils as red pencils. How many pencils does Lydia have in all?

pencils


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Grade 2 9 Chapter 5

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2NS2.35-1

Problem-Solving Practice

Add Tens

Solve. Use addition facts to help.

1. Jake has 50 blue marbles. His sister has 40 green marbles. How many marbles do they have in all?

marbles

2. Sue has 10 guppies. Her friend Halley has 20. How many guppies do the girls have in all?

guppies

3. Corey has 60 animal stamps. He has 20 space stamps. How many stamps does he have altogether?

stamps

4. Ella takes 30 pictures of her trip. Her brother, Ed, takes 40 pictures. How many total pictures do they have?

pictures

5. Minny has 30 plain stickers. She has twice as many striped stickers. How many stickers does she have in all?

stickers

6. Steve has thirty paper airplanes. His friend Sal has ten fewer airplanes. How many paper airplanes do the two friends have?

planes


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Grade 2 10 Chapter 5

2NS2.35-1

Enrich

Mental Math

50 Think 5 + 7 = 12 So 50 + 70 = 120 + 70

20 + 20 Think 2 + 2 = 4 So 20 + 20 = 40

1. 40 + 20 Think + = So 40 + 20 =

2. 60 + 30 Think + = So 60 + 30 =

3. 50 + 40 Think + = So 50 + 40 =

Fill in addends to make 100.

Think about the number combinations that equal 10. Use the combinations as hints to find addends that have a sum of 100.

4. ___ + ___ = 100 5. ___ + ___ = 100

6. ___ + ___ = 100 7. ___ + ___ = 100

8. ___ + ___ = 100 9. ___ + ___ = 100

10. ___ + ___ = 100 11. ___ + ___ = 100

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2AF1.2

Count on to add. Use the hundred chart to help.

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92

Count on by tens to add.

45 + 20 = 65 45, 55 , 65

Count on by ones to add.

21 + 3 = 24 21, 22 , 23 , 24

Count on to add. Write the sum.

1. 18 + 30 = Count by tens. 18, 28 , 38 ,

2. 31 + 4 = Count by ones. 31, 32 , 33 , ,

3. 65 + 3 = 4. 37 + 20 =

5. 57 + 10 = 6. 41 + 40 =

7. 21 + 8 = 8. 36 + 3 =

9. 43 + 50 = 10. 62 + 7 =

Reteach

Count On Tens and Ones

5-2


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2AF1.2Skills Practice



1. 43 + 20 = 35 + 30 =

2. 18 + 40 = 51 + 10 =

3. 62 24 40 13 55+ 10 + 30 + 28 + 70 + 20

4. 20 34 5 80 48+ 49 + 20 + 44 + 11 + 40

5. 35 20 30 36 17+ 10 + 53 + 13 + 50 + 30

6. 44 38 60 70 57+ 40 + 20 + 18 + 23 + 10

Solve.

5-2

7. There are 30 children in the second grade. There are 45 children in the third grade. How many children are there in all?

children

8. The school gets 40 new math books. They also get 32 new spelling books. How many new books do they have now?

books


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2AF1.25-2

Homework Practice



1. 47 73 42 24+ 40 + 20 + 50 + 24

2. 22 41 34 34+ 33 + 56 + 22 + 35

3. 28 + 40 = 38 + 1 = 77 + 11 =

4. 65 + 30 = 76 + 2 = 55 + 44 =

Count on to solve.

5. There are thirty-three children in swim class. There are forty children in diving class. How many children are there in all?

children

6. Twenty-seven boys and thirty-two girls are learning volleyball. How many children in all are learning volleyball?

children

7. Look back over the page. Circle any sum that is the result of

adding doubles.

Then draw two circles around any sum that is the result of adding doubles plus one.


PDF PASS CORRECTIONS

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2AF1.25-2



Count on to solve.

1. There are 15 banana muffins and 3 carrot muffins at a bake sale. Write a number sentence that tells how many muffins there are.

2. Mr. Chan sells 32 cartons of milk on Monday. He sells 20 cartons of milk today. Write a number sentence that tells how many total cartons of milk he sells.

3. Glenda sells 46 puppy treats. Rene sells 30 cat treats. How many treats did they sell in all?

treats

4. Mrs. Hall cuts 30 pieces of cake. Mr. Cobb cuts 48 pieces of cake. How many pieces of cake are there in all?

pieces of cake

5. Toni buys a tart for 30 cents. Lou buys a pie for twice that amount. Write a number sentence to tell how much Lou pays for his pie.

Write a number sentence to tell how much Toni and Lou spend together.

6. Hal spends 35 cents on milk and 20 cents for one fruit bar. Tia buys two fruit bars. Write a number sentence that tells how much Tia spends on fruit bars.

How much do Hal and Tia spend in all?

cents


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2AF1.2Enrich

Well done!

Write the number on the line that is 10 more, then

shade in that number on the hundred grid.

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1. 43 67 17 63

2. 87 5 23 44

3. 47 45 83 3

4. 77 27 6 53

5. 13 57 46 33

6. 37 7 4 73

5-2


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2AF1.2, 2MR1.0

Mike scores 10 more points than Sara. Sara scores 5 more points than Des does. Des scores 6 points. How many points does Mike score?

Reteach (1)

Problem-Solving Strategy: Work Backward

5-3

What do I know?

• Mike scores 10 more points than Sara.

• Sara scores 5 more points than Des.

• Des scores 6 points.

What do I need to find?

• How many points Mike scores.

Understand

Step 1

Plan

Step 2

Solve

Step 3 Work backward.

• Des scores 6 points. Sara scores 5 more than Des.

Sara scores 6 + 5 = points.

• Mike scores 10 more than Sara.

Mike scores 11 + 10 = points.

I know how many points Des scores, so I can

start there and work backward .

Step 4 Does my answer make sense? Yes NoCheck


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Reteach (2)

Problem-Solving Strategy: Work Backward (continued)

Work backward to solve.

1. Serena wins seven more games than Lex does. Lex wins five more games than Maria does. Maria wins six games. How many games does Serena win?

games

2. In a hot dog eating contest, Yoshi eats 10 more hot dogs than Eli does. Eli eats 6 more hot dogs than Maury. Maury eats 8 hot dogs. How many hot dogs does Yoshi eat?

hot dogs

3. In a beanbag toss, Ruby scores 40 more points than Clare. Clare scores 30 more points than Anna, and Anna scores 20 points. How many points does Ruby score?

points

5. Juan collects 14 more leaves than Mia for science class. Mia collects 12 more leaves than Max. Max collects 9 leaves. How many leaves does Juan collect?

leaves

4. At the zoo today, forty more people watch the lions than the bears. Twenty more people watch the bears than the seals. Twenty people watch the seals. How many people watch the lions?

people

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2AF1.2, 2MR1.0Skills Practice


Solve. Work backward. Show your work.

5-3

1. Ann’s dog does 4 more tricks than Ben’s dog. Ben’s dog does 9 more tricks than Lisa’s dog. Lisa’s dog does 5 tricks. How many tricks does Ann’s dog do?

tricks

2. Green Stable has 12 more horses than Happy Glen. Happy Glen has 9 more horses than Sun Farm. Sun Farm has 7 horses. How many horses does Green Stable have?

horses 3. Dan has twenty fish in five different tanks. Ahmal has eight more fish than Dan. Their friend Andi has ten more fish than Ahmal. How many fish does Andi have?

fish

5. Dora’s Diner has 3 more breakfast specials than the Tip-Top Grill. The Tip-Top Grill has 11 more breakfast specials than Charlie’s Cafe. Charlie’s Cafe has 6 breakfast specials. How many breakfast specials does Dora’s Diner have?

specials

4. In one week, Kitty Rescue saves 12 cats. That same week, Caring Paws saves 6 more cats than Kitty Rescue. Here Kitty Kitty saves 10 more cats than Caring Paws. How many cats did Here Kitty Kitty save?

cats


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Homework Practice


Solve. Work backward. Show your work.

1. Uncle Joe plans to bring 12 more hot dogs to the picnic than Aunt Patty. Aunt Patty will bring 5 more hot dogs than Grandpa. Grandpa will bring 10 hot dogs. How many hot dogs will Uncle Joe bring?

hot dogs

2. Selma brings 5 more chickens than her sister Lee does. Lee brings 4 chickens. Ira brings 6 more chickens than Selma. How many chickens does Ira bring?

chickens

3. Aunt Alice bakes seven pies for the picnic. Emil bakes four more pies than Aunt Alice. Sue bakes six more pies than Emil. How many pies does Sue bake for the picnic?

pies

4. Carol always brings melons to the picnic. This year, she will bring 5 more melons than Kayla. Kayla will bring 3 more melons than Matt. Matt will bring 2 melons. How many melons will Carol bring to the picnic?

melons


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Pet Pounds

Can you figure out how much each dog weighs?

small dog + small dog + large dog + large dog = 80 pounds

small dog + large dog + large dog = 70 pounds

small dog + large dog = 40 pounds

The small dog weighs pounds.

The big dog weighs pounds.

This is how I solved the problem:


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2AF1.0, 2MR1.2

Add. Regroup when you have 10 ones.

Step 1 Step 2

18 18+ 6 + 6

Add the ones. Add the tens.

ones = ten ones

Add. Regroup when you have 10 ones.

Step 1 Step 2

1. 24 24+ 7 + 7


ones = ten one

2.

36 36+ 6 + 6


ones = ten ones

11

Reteach

Regroup Ones as Tens

5-4


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Use WorkMat 6 and to add.


Do you regroup?

Write the sum.

1. 15 + 7 1 tens 12 onesyes no

15 + 7

2. 34 + 6 tens ones

yes no 34 + 6

3. 52 + 7 tens ones

yes no 52 + 7

4. 73 + 5 tens ones

yes no 73 + 5

Solve.

5-4

5. Sam has 93 stamps. Len gives him 4 more. How many stamps does Sam have now?

stamps

6. There are 17 students in the jump-rope club. 8 more join. How many students are in the club now?

students


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2AF1.0, 2MR1.25-4

Homework Practice


Add.


Do you regroup?

Write the sum.

1. 24 + 7 tens ones yes no 24 + 7 =

2. 36 + 8 tens ones yes no 36 + 8 =

3. 28 + 5 tens ones yes no 28 + 5 =

4. 47 + 4 tens ones yes no 47 + 4 =

5. 23 + 3 tens ones yes no 23 + 3 =

6. Last year, 12 bands marched in the parade. This year, 9 bands marched in the parade. How many bands marched in all?

bands

7. Nine clowns walk in Saturday’s parade. Twenty-three clowns drive a tiny car. How many clowns are in Saturday’s parade?

clowns

8. Look over the problems on this page. Draw a circle around any sum that has a 3 in the ones place. Then draw a box around any sum that has a 5 in the tens place.


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Add. Tell how many ones and tens.

1. Rich planted 18 seeds last year. This year he plants 8 more. How many seeds has he planted in all?

ten ones

seeds

2. Hal has 63 shells. He adds 3 more to his collection. How many shells does he have now?

tens ones

shells

3. Casey has 35 nuts. Grandmother gives him 7 more. How many total nuts does Casey have?

tens ones

nuts

4. Mrs. Steven made 65 yarn bunnies. This week she will make 6 more bunnies. How many bunnies will she have then?

tens ones

bunnies

5. Kat has eighteen books. Her sister has nine books. Together, how many books do the sisters have?

ten ones

books

6. Marvin wins thirty-five marbles this summer. He won six marbles last year. How many did he win in both years?

tens ones

marbles


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2AF1.0, 2MR1.2Enrich

Danny’s Dimes

Jacob collects pennies. Danny collects dimes. Danny has offered to give Jacob 5 dimes for all of his pennies.

Help Jacob to decide if this is a fair trade. He knows that ten pennies = one dime.

Circle groups of ten pennies.

How many dimes should Danny give him to make an equal trade?

How many pennies will be left?

5-4


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Find the sum. Regroup if you need to.

Step 1 Step 2

16

1 6 + 6

+ 6

16

+ 6

Add the ones.

ones = ten ones Add the tens.

Add. Shade 10 ones. Regroup if you need to.

Step 1 Step 2

1. 35

C G C

3 5 + 6

+ 6

35

+ 6

Add the ones.

ones = ten one Add the tens.

2. 24

2 4 + 9

+ 9

24

+ 9

Add the ones.

ones = ten ones Add the tens.

Reteach

Add One-Digit Numbers and Two-Digit Numbers

5-5


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2AF1.0, 2MR1.25-5

Skills Practice



1. onestens

+

2 79

1 2. onestens

+

4 37

3. onestens

+

5 57

1 4. onestens

+

5 48

5. onestens

+

3 28

1 6. onestens

+

6 59

Solve.

7. Jana scores 18 points in the first half of a game. She scores 6 more points in the second half. How many points does she score in all?

points

8. 22 parents come to watch the game. 9 friends also come. How many total people come to watch the game?

people


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2AF1.0, 2MR1.2Homework Practice


Add.

1.

5 6 + 8

8 4 + 3

6 6 + 6

2 9 + 4

2.

5 4 + 7

3 7 + 9

2 1 + 9

4 5 + 6

3.

2 6 + 6

3 5 + 7

5 4 + 9

7 9 + 1

Solve.

4. Frank has 34 trading cards. He gets 8 more from a friend. How many cards does he have now?

cards

5. Ms. Ito has 24 students. 5 new students join her class. How many students does Ms. Ito have in all?

students

6. Look at all the problems above. Circle the sums in which you regrouped ones as tens.

5-5


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2AF1.0, 2MR1.25-5



Solve. Regroup if you need to.

1. Fran teaches 12 children to swim on Saturday mornings. She teaches 8 teens to swim on Saturday afternoons. How many people does she teach to swim each Saturday?

people

2. Harry coaches 25 children in basketball on Wednesdays. On Saturday, he coaches 9 more children. How many children does he coach in all?

children

3. The vending machine has 43 cans of orange juice and 9 cans of apple juice. How many total cans of juice are there?

cans

4. The ball rack holds 32 basketballs and 8 soccer balls. How many balls in all does the rack hold?

balls

5. The dodgeball club has fifteen members. Seven new members join. How many members does the club have now?

members

6. Fifty-four people came early to the Tigers’ last game. Nine people arrived late and could not find a seat. How many people came to the game?

people


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Annie’s Addition

Annie is practicing addition. Check Annie’s work.

Write the correct answer under the box.

Color the boxes yellow that have the correct answer.

Draw a blue X on the problems that are not correct.

+ 721

24

+ 850

42+ 3

71

68+ 7

25

19

+ 758

51

+ 568

63

+ 498

93 + 537

32 + 764

57

+ 942

43

Annie has correct problems.


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2NS2.2, 2AF1.3

Preparation: A set of counters is needed for this activity.

June has 28 stickers. Pam gives her 16 more stickers. How many stickers does June have now?

Step 1 Step 2 Step 3

28 10 10

10

1 1 1 1 1 1

1 1 1 1 1 1 1 1

Regroup 10 ones 28+16 as 1 ten if you can. +16

10 10 10 10

1 1 1 1

44

June has 44 stickers.

Add. You can use counters to help. Regroup if

you need to.

1. tens ones

3 7 + 2 7

tens ones

3 5 + 1 5

tens ones

4 8 + 2 5

tens ones

1 4 + 2 3

2. tens ones

1 9 + 6 8

tens ones

3 6 + 4 3

tens ones

5 4 + 2 7

tens ones

3 8 + 2 9

Reteach

Add Two-Digit Numbers

5-6


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2NS2.2, 2AF1.3Skills Practice


Preparation: Base-ten blocks are needed for this activity.


1. tens ones

1

2 5 + 1 7

tens ones

2 4 + 1 2

tens ones

3 9 + 2 5

tens ones

2 2 + 2 8

2. tens ones

4 9 + 1 8

tens ones

2 4 + 4 9

tens ones

2 4 + 3 1

tens ones

4 6 + 3 9

Solve.

5-6

3. 46 people come to the museum in the morning. 39 more people come in the afternoon. How many people come to the museum?

people

4. 20 people go on a tour of the factory in the morning. 17 go on a tour in the afternoon. How many people go on a tour in all?

people


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2NS2.2, 2AF1.35-6

Homework Practice


Add.

1. 1

3 5 + 2 5

6 0

4 8 + 8

1 5 + 5 9

2 9 + 1 8

2.

5 6 + 3 5

2 7 + 2 8

1 4 + 3 3

3 7 + 4 6

3.

2 3 + 8

5 4 + 2 2

4 6 + 1 9

1 9 + 3 4

Solve.

4. Jenny sells 32 cups of lemonade. Bruce sells 17 cups. How many cups do they sell together?

cups

5. Mr. William’s class sells45 raffle tickets. Ms. Ling’s class sells 40. How many tickets do they sell in all?

tickets


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Solve.

1. This morning Irene paints for 25 minutes. This afternoon she paints for 37 minutes. Write a number sentence to show how many total minutes she paints.

+ =

minutes

2. Mr. Aziz drives his delivery truck 53 miles on Wednesday. On Friday, he drives 34 miles. How many miles did he drive in all?

+ =

miles

3. Brad’s family picks 22 pounds of cherries at home. Then they pick 43 pounds at the orchard. How many pounds of cherries did they pick in all?

pounds

4. Mr. Cruz’s cows gave 48 gallons of milk this morning. This afternoon, they give only 34 gallons. How many gallons of milk did Mr. Cruz’s cows give in all?

gallons

5. Sara picks 24 apples. Her brother picks 33 apples. How many apples do they pick altogether?

applesTheir mom needs 21 apples to bake a pie. Can she bake two pies? Explain.

6. Sandy wants to buy a pen. It costs 87 cents. She has 7 dimes and 26 pennies. Can she buy the pen? Prove your answer.


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2NS2.2, 2AF1.3Enrich

Play a Game

Preparation: A coin is needed for this activity.

Drop a coin on the game board two times. On another piece of paper add the two numbers together.

The person with the greater sum gets one point.

You get two points if you have to regroup when you add.

Make a score sheet and use tally marks to keep your score.

The first player to get 10 points wins the game.

14 37 52 38

25 46 17 21

43 33 28 39

27 11 42 30

65 27 92 86

5-6


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An estimate is an answer that is close to

the exact answer.

If you do not need an exact answer, you

can estimate.

27 → 30 Think about which ten

+ 14 → + 10 each addend is closer to. 41 40

27 is closer to 30 . 14 is closer to 10 .

27 + 14 is about 40 .

41 is close to 40, so the answer is reasonable.

Round each addend to the nearest ten.

Estimate the sum.

1. 45 50 2. 82 3. 76

+ 14 + 10 + 12 + + 12 +

59 60 94 88

4. 31 5. 38 6. 16

+ 28 + + 28 + + 49 +

59 66 65

7. 47 8. 12 9. 83

+ 29 + + 59 + + 16 +

76 71 99

1098765432

201918171615141312

1

11

302928272625242321

403938373635343331

504948474645444341

605958575655545351

706968676665646361

807978777675747371

908988878685848381

1009998979695949391

22

32

42

52

62

72

82

92

1098765432

201918171615141312

1

11

302928272625242321

403938373635343331

504948474645444341

605958575655545351

706968676665646361

807978777675747371

908988878685848381

1009998979695949391

22

32

42

52

62

72

82

92

Reteach

Estimate Sums

5-7


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2NS6.0, 2NS2.05-7

Skills Practice

Estimate Sums

You can estimate when you don’t need an exact answer, or

to check addition. A number line can help you estimate.

33 34 35 36 4037 38 3930 31 32 43 44 45 46 5047 48 4941 42

37 is closer to 40 . 37 → 40

28 is closer to 30 . + 28 → + 30

40 + 30 is 70 . 37 + 28 = 65 70

65 is close to 70, so the answer is reasonable.

Add. Then round each addend to the nearest ten.

Estimate the sum.

1. 28 → 30 2. 38 → 3. 32 →

+ 28 → + 30 + 49 → + + 41 → +

56 60

4. 48 5. 31 6. 22

+ 33 + + 32 + + 48 +

Solve. Make an estimate.

7. Hugo has 43 cents. Olive has 48 cents. Together, do they have enough to buy a box of raisins that costs 85 cents? Prove your answer.

8. Kendra has 27 cents. Mikey has 43 cents. Do they have enough money to buy a box of popcorn that costs 90 cents? Explain.


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2NS6.0, 2NS2.0Homework Practice

Estimate Sums

Add. Then round each addend to the nearest ten.

Estimate the sum.

1. 54 → 50 2. 34 3. 24

+ 15 → + 20 + 37 + + 19 +

69 70

4. 17 5. 58 6. 32

+ 17 + + 29 + + 41 +

7. 48 8. 29 9. 67

+ 26 + + 14 + + 22 +

10. 16 11. 46 12. 37

+ 67 + + 19 + + 27 +

Solve.

5-7

13. There are 34 adults at the Swim Club. There are 57 children at the Swim Club. About how many people are at the Swim Club?

about people

14. There are 24 apples in the first basket. There are 37 apples in the second basket. About how many apples are there total?

about apples


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2NS6.0, 2NS2.05-7


Estimate Sums

Solve. Use the number line to help you

round the addends.

10 20 30 40 50 6015 25 35 45 55

1. Sam’s puppy has 11 spots. Mo’s puppy has 18 spots. About how many spots are there altogether?

about 10 + about 20 = about spots

2. Sam counts 16 birds on a fence and 28 birds in a tree. About how many birds does Sam count?

about + about

= about birds

3. The toy store has 47 dolls near the front door. There are 36 dolls in the back of the store. About how many dolls does the store have to sell?

about dolls

4. Vikki has 34 cans for recycling. Monica has 38 cans for recycling. About how many cans will they recycle together?

about cans

5. Hal reads a book for forty-three minutes. Then he reads another book for forty-six minutes. About how many minutes does Hal spend reading?

about minutes

6. Jack’s trail mix has forty-five peanuts. It also has fifty-two walnuts. About how many nuts are in the trail mix?

about nuts


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Enrich

Keeping Tabs

Our school is collecting tabs from soda cans.

Heather has 39 tabs. 30 39 40

She has about tabs.

Kaya has 26 tabs. 20 26 30

She has about tabs.

Estimate how many tabs Kaya and Heather

collected together.

Jack collected 53 tabs. 50 53 60

He has about tabs.

Kenny collected 19 tabs. 10 19 20

He has about tabs.

Estimate the number of tabs Jack and Kenny

collected together.

Paulo has 57 tabs. 50 57 60

He has about tabs.

Marie has 11 tabs. 10 11 20

She has about tabs.

Estimate the number of tabs that Paulo and

Marie collected together.


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2AF1.1, 2MR3.0

You can use addition strategies to help you add

three addends.

Look for doubles. Look for a ten.

24 37 14 8 11 10 + 32 2 + 33 1

70 10 81 11

Add. Circle the doubles. Put a box on the tens.

1. 14 42 27 29 24 48 24 27 10 42 11 11 + 13 + 12 + 13 + 21 + 26 + 12

51

2. 17 23 45 6 10 23 30 26 13 24 57 16 + 13 + 46 + 15 + 40 + 23 + 33

3. 32 13 55 19 37 21 18 36 20 41 17 17 + 11 + 46 + 15 + 13 + 32 + 13

11

11

Reteach

Add Three Two-Digit Numbers

5-8

1


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Look for two numbers in the ones column that

make a ten or a double. Circle them. Add.

1. 23 41 35 13 26 14 32 18 24 37 + 27 + 12 + 25 + 4 + 14

64

2. 8 36 55 11 35 20 28 13 63 16 + 12 + 32 + 14 + 24 + 34

3. 14 52 44 19 24 18 20 16 68 3 + 14 + 11 + 22 + 12 + 25

4. 21 37 14 62 43 18 13 45 11 15 + 21 + 22 + 3 + 23 + 22

Solve.

11

5-8

5. There are 34 children in first grade. There are 27 in second grade. There are 31 in third grade. How many children are there in all?

children

6. 13 students play the bells. 16 students play the drums. 24 students play the recorder. How many total students play instruments?

students


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2AF1.1, 2MR3.05-8

Homework Practice


Add.

1. 26 52 23 71 53 45 23 33 14 27 + 24 + 18 + 43 + 13 + 10

95

2. 11 39 47 38 36 19 51 36 34 24 + 24 + 0 + 16 + 20 + 32

3. 71 35 44 39 28 13 27 22 38 25 + 15 + 15 + 26 + 11 + 35

Solve.

11

4. The Tan family is going apple picking. Mr. Tan picks 24 apples. Mrs. Tan picks 35 apples. Their son picks 26 apples. How many apples do the Tans pick?

apples

5. Look back over this page. Choose one problem. In the space below, write a story problem for the sum.

041_045_C05L8_105804.indd Page 43 5/8/10 5:46:38 PM u-s073041_045_C05L8_105804.indd Page 43 5/8/10 5:46:38 PM u-s073 /Volumes/108/GO00577/MathConnects_CA_CRM_10/Ancilliary/Application_Files/C05_.../Volumes/108/GO00577/MathConnects_CA_CRM_10/Ancilliary/Application_Files/C05_...

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Solve. Make a 10 or use doubles to help you add.

1. The zoo is open 10 hours on Fridays, 12 hours on Saturdays, and 8 hours on Sundays. How many hours is it open during those three days?

hours

2. The bear cub takes a 15-minute nap. Later, she takes a second nap for 23 minutes. Her last nap is 25 minutes. How much time does the cub spend napping?

minutes

3. Three monkeys weigh 51 pounds. One weighs 12 pounds and another weighs 21 pounds. How much does the third monkey weigh?

pounds

4. Dr. Shu takes care of 24 birds. She takes care of some cubs and 13 pups. She takes care of 55 animals in all. How many were cubs?

cubs

Children

Adults

Friday Saturday Sunday

15 22 19

8 15 13

Visitor

Number of Zoo Visitors

5. How many children visited the zoo in all?

children

6. How many adults visited the zoo in all?

adults


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2AF1.1, 2MR3.0Enrich

Building Blocks

5-8

20 13 10 21 15

Preparation: Scissors and glue are needed for this activity.

Find each missing addend and glue it in the box.

10 = 40

11

10

20 = 46

41 20 = 74

51 10 = 82

23 24 = 57


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2MR1.1, 2AF1.2

On a math test, Edie scores 10 points more than Jack. Jack’s score is 5 points more than Dee’s. Dee scores 73 points. How many points does Edie score?

Reteach (1)

Problem-Solving Investigation: Choose a Strategy

5-9

What do I know?

Edie scores 10 more points than Jack.

Jack scores 5 more points than Dee.

Dee scores 73 points.

What do I need to find?

How many points Edie scores.

Understand

Step 1

Plan

Step 2

Solve

Step 3 Write a number sentence.

Jack scores 5 more than Dee.

Edie scores 10 more points than Jack.

Edie’s score is 10 + 5 + 73 .10 + 5 + 73 = 88

Edie scored 88 points.

How will I find how many?

I can write a number sentence.

Check

Step 4Did I write a number sentence? yes

Does my answer make sense? yes


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2MR1.1, 2AF1.25-9

Reteach (2)


Problem-Solving Strategies

• Draw a Picture

• Work Backward

• Write a Number SentenceSolve.

1. The school has three buses. 34 children ride on one bus. 27 children ride on the second bus. 33 children ride on the third bus. How many children ride in all?

children

2. Jesse’s bus takes 16 minutes to get to school. Miguel’s bus takes 17 more minutes to get to school. Jo’s bus takes 20 more minutes to get to school. How many minutes does it take Jo’s bus to get to school?

minutes

Children

Adults

Friday Saturday Sunday

21 43 19

18 51 28

Visitor

Number of Visitors to the Art Exhibit

3. On what day did the art exhibit have the most visitors? Tell how you know.

4. Who visited the art exhibit more, adults or children? Tell how you know.


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2MR1.1, 2AF1.2Skills Practice



• Draw a Picture

• Work Backward

• Write a Number Sentence

5-9

Solve.

1. Mr. Garcia’s class buys tickets for the basketball game. They buy 27 children’s tickets and 35 adult tickets. The team also gives them 30 free tickets. How many tickets does the class have in all?

tickets

2. At the game, 18 band members wear red, 22 band members wear blue, and 31 wear white. How many band members are there in all?

band members

3. At the snack stand, Tony sells 34 bags of popcorn. He sells 25 drinks and 32 hot dogs. How many snacks does he sell in all?

snacks

4. Cheryl scores 28 points. Jia scores 12 points more than Cheryl does. Brooke scores 18 more points than Jia. How many points does Brooke score?

points


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2MR1.1, 2AF1.25-9

Homework Practice



• Draw a Picture

• Work Backward

• Write a Number SentenceSolve.

1. Madge, Sierra, and Tyra baked pies for the state fair. Madge’s pie did not come in second. The judges like Sierra’s pie better than Madge’s. Sierra came in second. Whose pie won first place?

pie won first place.

2. Mr. Green judged 24 cows. He judged twice as many horses as cows. How many cows and horses did he judge in all?

cows and horses

3. The fair has a pumpkin contest. The biggest pumpkin weighs 37 pounds. The second-place pumpkin weighs 36 pounds. A 26-pound pumpkin wins third. How much do the three pumpkins weigh in all?

pounds

4. Thirty people watch the dog show on Wednesday. On Thursday, four more people watch the dogs than on Wednesday. On Friday, the number of people who watch the dogs is the same as the number who watch on Thursday. How many people watch the dog show on Friday?

people


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2MR1.1, 2AF1.25-9

Enrich

Adding Ages

1. Tom is 3 years older than his sister Pam.

Their ages add up to 13.

How old is Tom?

How old is Pam?

2. Gene and Madeline are twins.


How old are the twins?

How old will the twins be in 3 years?

3. Erica is 5 years older than Sima.


How old is Erica?

How old is Sima?

4. Jake is 10 years younger than his cousin Matthew.


How old is Jake?

How old is Matthew?


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Mastery Level Learning Goals Comments

B D M Lesson

5-1 Model, represent, and interpret number relationships to solve problems involving the addition of tens.

5-2 Count on to add two whole numbers up to two-digits long.

5-3 Solve problems by working backward.

5-4 Find the sum of two whole numbers up to two-digits long by regrouping.

5-5 Find the sum of two whole numbers up to two-digits long.

5-6 Find the sum of two whole numbers up to two-digits long by using number sentences.

5-7 Estimate sums.

5-8 Find the sum of three whole numbers up to two-digits long.

5-9 Choose a strategy to solve a problem.

B = Beginning; D = Developing; M = Mastered

Note to Parents

Individual Progress Checklist5

051_074_C05EM_105804.indd Page 51 5/5/10 10:12:04 PM elhi-2051_074_C05EM_105804.indd Page 51 5/5/10 10:12:04 PM elhi-2 /Volumes/108/GO00577/MathConnects_CA_CRM_12/Ancilliary/Application_Files/C06_.../Volumes/108/GO00577/MathConnects_CA_CRM_12/Ancilliary/Application_Files/C06_...

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Diagnostic Test

Are you ready for chapter 5?

Write each number two ways.

5

1.

ones

ten ones

2.

ones

tens ones

Add.

3. 9 4. 8 5. 7 + 6 + 8 + 3

6. 3 + 1 + 5 = 7. 2 + 2 + 3 =

Round to the nearest ten.

8. 37 rounds to 9. 72 rounds to

10. There are 3 white ducks and 2 brown ducks in a pond. Four more brown ducks join them. How many ducks are in

the pond now? ducks

051_074_C05EM_105804.indd Page 52 5/10/10 5:34:31 PM s-087051_074_C05EM_105804.indd Page 52 5/10/10 5:34:31 PM s-087 /Volumes/108/GO00577/MathConnects_CA_CRM_10/Ancilliary/Application_Files/C05_.../Volumes/108/GO00577/MathConnects_CA_CRM_10/Ancilliary/Application_Files/C05_...

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Chapter Pretest

Find each sum. [Lesson 5.1]

1. 40 50 20+ 30 + 40 + 60

Use the number line to count on. [Lesson 5.2]

0 10 20 30 40 50 60 70 80 90 100

2. 37 51 41+ 22 + 16 + 37

Find the sum. [Lessons 5.4, 5.5]

3. 27 4. 47 5. 64 + 7 + 9 + 7

Fill in the circle for your answer. [Lesson 5.6]

6. 34 + 58 = 7. 13 + 69 =

82 92 712 93 54 812 72 82

5


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Mid-Chapter Test

Preparation: Base-ten cubes and unit cubes are needed for this assessment.

Add. Use an addition fact to help you. [Lesson 5.1]

1. 5 tens + 3 tens = tens 2. 4 tens + 1 ten = tens

50 + 30 = 40 + 10 =

Count on to add. Write the sum. [Lesson 5.2]

3. 54 4. 1 5. 12 6. 82+ 3 + 26 + 6 + 5

7. 13 + 30 = 8. 55 + 40 =

9. 6 + 60 = 10. 46 + 10 =

Find the sum. Use and . [Lesson 5.4]

Add How many tens?

How many ones?

Do you need

to regroup?

Write the

sum.

11. 43 + 6 tens ones yes no 40 + 9 =

12. 24 + 7 tens ones yes no 24 + 7 =

Fill in the circle for your answer.

13. What is forty-eight plus eighteen? [Lesson 5.4]

56 66 76 88

5


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Vocabulary Test

Use the words in the word bank. Write the correct

word in the blank.

estimate regroup addround addends sum

1. The answer to an addition problem is called the .

2. A(n) is a number close to an exact amount.

3. To change a number so it is easier to work with is to

the number.

4. When you , you join together sets to find the total.

5. To take apart a number and write it a new way is to

.

6. Any numbers being added are called .

Circle the correct answer.

7. regroup a number12 + 3 = 3 + 12 24 = 2 tens and 52 + 29 is about 4 ones 50 + 30 = 80

8. estimate

12 + 3 = 3 24 = 2 tens and 52 + 29 is about 4 ones 50 + 30 = 80

9. round 3333 30 40

5


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Oral Assessment

Preparation: Several base-ten cubes and at least fifty unit cubes are needed for this assessment. Board access or index cards, labeled with the following addition facts, are also necessary to this assessment.

A. 20 + 40 = 60 B. 41 + 8 = 49 C. 25 + 41 = 66 D. 34 + 58 = 92 E. 34 +36 + 28 = 98

Directions: This test targets those students who have developing verbal skills—both oral and written. Ask the questions below and have students record their answers, or record the answers they supply.

1. Ask, Which addition fact has 4 tens in an addend and 4

tens in the sum?

2. Ask, Which addition fact shows that you can use adding

ones to help you add tens?

3. Ask, 30 + 60 = 90 is an estimate of which addition fact?

Have students use base-10 and unit cubes to show how to round to addends to find an estimate.

4. Have students choose one addition fact with a sum that can be found using the make 10 strategy.

5. Ask, Which sums can you find without regrouping ones?

6. Have students use the place value chart to show how to regroup ones when they add 34 + 58 = 92.

5


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Oral Assessment Responses

1.

2.

3.

4.

5.

6.

onestens

+

5


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Listening Assessment

Preparation: Base-ten cubes, unit cubes, a tens frame, counters, and crayons are needed for this assessment.

Ask students to complete each of the following

groups of tasks.

1. Use base-ten cubes and unit cubes to show the number sentence 30 + 40 = 70.Use unit cubes to show an addition fact related to this tens fact.

2. Use base-ten cubes and unit cubes to show the number sentence 32 + 6 = 38.Explain how to estimate the sum of 32 + 6.

3. Use a tens frame and counters to show 48.Use a tens frame and counters to show 6.Use the models you’ve just made to find the sum of 48 + 6 by regrouping.

4. Draw a number line that shows numbers from 30 to 70.Use a crayon to show how to find the sum of 39 + 25 by counting on.

5


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Show your model here.

1.

2.

3.

4. Draw your number line here.

Listening Assessment Response Sheet5



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5Chapter Project Rubric

Score Explanation

3 Student created an effective and useful guide that illustrated ways to add two-digit numbers. Student’s guide was well organized and complete, containing page titles, relevant vocabulary, numbered steps, and examples. Student turned the guide into a book, and used the guide with classmates and family to help them better learn chapter concepts.

2 Student created an effective and useful guide that illustrated ways to add two-digit numbers. Student’s guide was well-organized, containing page titles, most vocabulary, numbered steps, and examples.

1 Student created a guide that illustrated ways to add two-digit numbers. The guide covered most chapter concepts, but was not well organized.

0 Student did not successfully accomplish this task. The chapter guide was either incomplete or incorrect. It was of no use as a study guide.


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Chapter Foldables Rubric

Score Explanation

3 Student successfully made, labeled, and used Foldable to record information on more complicated addition strategies. Student used multiple addition strategies, including “mental math,” “basic facts,” “count on by tens,” “regrouping,” and “estimation.” Student successfully demonstrated more complicated addition problems, including adding a 1-digit number to a 2-digit number, adding two 2-digit numbers, and adding three 2-digit numbers.

2 Student successfully made, labeled, and used Foldable to record information on more complicated addition strategies. Student used different addition strategies, and began to solve more difficult addition problems, including adding two 2-digit numbers.

1 Student successfully made, labeled, and used Foldable to record information on more complicated addition strategies. Student used more than 1 addition strategy.

0 Student did not successfully construct or use chapter Foldable. Student did not comprehend and use multiple addition strategies. Student was unable to process more complicated addition problems, including adding 2-digit numbers to 1-digit numbers.

5


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Chapter Test, Form 1

1. 30 + 20 = [Lesson 5.1]

60

50

40

5

5

3. 23 + 9 = [Lesson 5.4, 5.5]

2 tens 8 ones

2 tens 9 ones

3 tens 2 ones

3 tens 12 ones

2. Which is another way to write 32 + 7? [Lesson 5.4, 5.5]

3 tens 9 ones

3 tens 7 ones

3 tens 2 ones

2 tens 14 ones

4. How would you regroup 4 tens and 18 ones? [Lesson 5.4]

3 tens 8 ones

4 tens 8 ones

5 tens 18 ones

5 tens 8 ones

Read each question carefully.

Fill in the circle for the correct answer.

5. 43 + 39 = [Lessons 5.4, 5.6]

7 tens 2 ones = 72

7 tens 1 one = 71

8 tens 2 ones = 82

8 tens 12 ones = 92

GO ON


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Chapter Test, Form 1 (continued)

Sunny Brook Farm

Pine Valley Farm

Cows Pigs Lambs

22 18 14

33 12 17

Animals at 4H Farms

5

6. Estimate the number of pigs there are, in all, at both farms. [Lesson 5.7]

10

20

30

70

7. How many animals, in all, are there at Sunny Brook Farm? [Lesson 5.8]

34

44

54

64

Chickens

Ducks

Geese

Birds at Sunset Ridge Farms

8. How many birds, in all, are there at Sunset Ridge Farms? [Lesson 5.8]

50

61

64

74 STOP


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Chapter Test, Form 2A



5

2. Which is another way to write 43 + 5? [Lessons 5.4, 5.5]

3 tens 5 ones

4 tens 8 ones

5 tens 8 ones

6 tens 5 ones

1. 40 + 30 = [Lesson 5.1]

70

30

40

7

4. How would you regroup 6 tens and 16 ones? [Lesson 5.4]

7 tens 6 ones

5 tens 2 ones

4 tens 6 ones

6 tens 6 ones

3. 32 + 6 = [Lessons 5.4, 5.5]

3 tens 6 ones

3 tens 2 ones

4 tens 8 ones

3 tens 8 ones

6. 49 + 38 = [Lesson 5.4]

97

87

83

77

GO ON

5. Which addition fact is shown? [Lesson 5.6]

+ =

28 + 46 = 74

20 + 40 = 60

28 + 46 = 54

28 + 46 = 64


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Chapter Test, Form 2A (continued)

Roses

Tulips

Red Pink White

32 17 24

33 12 17

Fern’s Flower Farm

5

7. Estimate the total number of roses at Fern’s Flower Farm. [Lesson 5.7]

50

60

70

80

9. How many pets do the second graders have in all?

[Lesson 5.8]

45

58

68

78

8. How many tulips, in all, are there at Fern’s Flower Farm? [Lesson 5.6]

72

62

52

32

10. How many birds and cats combined are the favorite pets? [Lesson 5.8]

23

32

42

9 STOP

Cats

Dogs

Birds

Favorite Pets of Second Graders


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Chapter Test, Form 2B

Read each question.


5

1. Add. 20 + 10 = [Lesson 5.1]

20

10

30

2. Add. 50 + 40 = [Lesson 5.1]

90

40

50

3. 12 + 6 = [Lesson 5.5]

12

16

18

4. 16 + 9 = [Lesson 5.5]

19

15

25

5. Use the number line. Find 16 + 12. [Lesson 5.2, 5.6]

282930212019 22232425262718151617

28

22

18

6. 28 + 39 = [Lesson 5.6]

5 tens 7 ones = 57

6 tens 8 ones = 68

6 tens 7 ones = 67

GO ON


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Chapter Test, Form 2B (continued)

7. Nine dogs are in a park. Sixteen dogs are outside the park. A dog walker brings 12 more. How many dogs are there in all? [Lesson 5.8]

25

28

37

8. Use .

Find 16 + 27. [Lesson 5.6]

33

53

43

9. Estimate how many children voted for red or blue. [Lesson 5.7]

about 20 children

about 34 children

about 30 children

10. In all, how many children voted? [Lesson 5.8]

44

34

24

STOP

Red

Blue

Green

Favorite Color Survey

Preparation: Counters are needed for this assessment.


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Chapter Test, Form 2C


Write your answer on the line.

Find the sum. [Lessons 5.1, 5.5, 5.6]

1. 40 2. 44 3. 52 + 30 + 3 + 33

5

7.

onestens

+

4 572

GO ON

Find the sum.

6. [Lessons 5.4, 5.5, 5.6, 5.8]

onestens

+

5 79

4.

+

=

Write the sum two different ways. [Lessons 5.4, 5.6]

tens ones

5.


tens ones

++ ==


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Chapter Test, Form 2C (continued)

8. [Lessons 5.4, 5.8] 9. [Lesson 5.4, 5.8]

onestens

+

2 372

4 5

onestens

+

3 432

4 1

Roses

Tulips

Red Pink White

38 24 30

28 12 24

Daisies 0 30 25

Flowers sold on Mother’s Day

10. How many roses were sold in all? Make an estimate. [Lesson 5.7]

about roses

11. How many total tulips were sold for Mother’s Day? [Lesson 5.8]

tulips

12. Max buys 7 palm trees. He buys 10 more cactus plants than he buys palm trees. He buys 12 more ferns than he buys cactus. Write a number sentence to show how many ferns Max buys. [Lesson 5.3]

fernsSTOP

5


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Chapter Test, Form 2D



1. [Lesson 5.1] 2. [Lesson 5.5] 3. [Lesson 5.6]

50 22 50 + 20 + 3 + 33

5

7. [Lessons 5.4, 5.6]

onestens

+

2 562

GO ON

Add.

6. [Lessons 5.4, 5.5]

onestens

+

3 84

4.

=

Write the number two different ways. [Lesson 5.4]

tens ones

5.

= +


tens ones


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Chapter Test, Form 2D (continued)5

8. [Lessons 5.4, 5.8] 9. [Lessons 5.4, 5.8]

onestens

+

1 311

4 5

onestens

+

2 462

2 1

10. Ellen bakes 5 more pies than Jane. Jane bakes 7 more pies than Celia. Celia bakes 6 pies. Complete the number sentence to show how many pies Jane bakes. [Lesson 5.3]

+ = pies

Complete the number sentence to show how many pies Ellen bakes.

+ = pies

STOP


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Cumulative Standardized Test Practice

Read each question. Fill in the circle for the

correct answer.

5

1. 9 + 9 = [Lesson 2.4]

9

0

18

19

2. 7 − 0 = [Lesson 3.2]

0

6

7

5

3. 7 + 5 + 2 = [Lesson 2.7]

15

14

0

16

4. 8 − 3 = [Lesson 3.1]

11

5

6

8

5. 8 + 5 = [Lesson 2.2]

13

3

8

12

6. [Leson 5.8]

onestens

+

1 822

2 4

74

54

108

64

GO ON


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Cumulative Standardized Test Practice

(continued)



Mr. Bean

Ms. Cook

34 pounds

26 Pounds

Mr. Green 21 Pounds

Prize Pumpkins

7. Use <, >, or = to complete the sentence. [Lesson 1.7]

26 pounds 21 pounds

8. What is the range of the data? [Lesson 4.6]

9. Kay made three more paintings than Alex. Alex made four more paintings than Bert. Bert made six paintings. How many paintings did Kay make? [Lesson 5.3]

paintings

10. Order the numbers from least to greatest. [Lesson 1.6]

11, 34, 17 , ,

STOP

5


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Answers (Graphic Organizer and Anticipation Guide)

An

swer

s

Grade 2 A1 Chapter 5

Nam

e

Gra

de 2

4

C

hapt

er 5

5 Pre

par

atio

n: A

set

of

base

-ten

cu

bes

is n

eede

d fo

r th

is a

ctiv

ity.

Dir

ecti

ons:

B

efor

e yo

u b

egin

Ch

apte

r 5,

dis

trib

ute

th

ese

ques

tion

s to

stu

den

ts. R

ead

the

ques

tion

s al

ong

wit

h s

tude

nts

, giv

ing

them

tim

e to

an

swer

eac

h. Y

ou m

ay w

ant

to a

sk t

he

sam

e qu

esti

ons

afte

r st

ude

nts

com

plet

e th

e ch

apte

r.

Bef

ore

Ch

apte

rA

fter

C

hap

ter

1.

Wh

at c

an y

ou s

ay a

bou

t th

e su

m o

f 3

+ 5

an

d th

e

su

m o

f 30

+ 5

0?

Th

e on

es a

dd

itio

n c

an h

elp

you

do

the

ten

s ad

dit

ion

.

28

2930

2120

2223

2425

2627

2.

How

can

you

use

th

e n

um

ber

lin

e to

sol

ve 2

1 +

7?

St

art

at 2

1. C

oun

t on

7 n

um

ber

s to

28.

3.

How

man

y a

re n

eede

d to

sh

ow

28 +

12?

4

4.

Wh

en i

s a

good

tim

e to

est

imat

e a

sum

?

Esti

mat

e w

hen

you

do

not

nee

d a

n

exac

t an

swer

.

5.

Cam

has

4 m

ore

fish

th

an P

am. P

am h

as 5

mor

e fi

sh t

han

Sam

. Sam

has

10

fish

. To

fin

d th

e n

um

ber

of C

am’s

fis

h, w

hos

e fi

sh s

hou

ld y

ou a

dd f

irst

?

A

dd

Sam

‘s f

ish

to

Pam

‘s f

ish

.

Ant

icip

atio

n G

uide

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Nam

e

Gra

de 2

2

C

hapt

er 5

5G

raph

ic O

rgan

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Seq

uenc

e C

hart

A s

ugg

esti

on f

or h

ow t

o co

mp

lete

th

is g

rap

hic

org

aniz

er c

an b

e fo

un

d

in t

he

answ

er p

ages

at

the

bac

k o

f th

is b

ook

.

AD

D O

NE

SF

IRS

T, T

HE

NA

DD

TE

NS

RE

GR

OU

PO

NE

S A

S T

EN

SIF

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EE

DT

O

WR

ITE

SU

M

Ste

p 1

Ste

p 2

Sum

Not

e to

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cher

: Y

ou m

ay u

se t

his

gra

ph

ic

orga

niz

er t

o h

elp

stu

den

ts r

emem

ber

wh

at

step

s to

tak

e w

hen

ad

din

g tw

o tw

o-d

igit

n

um

ber

s. I

t ca

n a

lso

hel

p t

hem

kee

p t

he

step

s in

th

e co

rrec

t or

der

.

Tel

l a fr

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wha

t you

lear

ned.

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_...

A01_A33_C05AN_105804.indd Page A1 5/13/10 11:09:38 PM u-s089A01_A33_C05AN_105804.indd Page A1 5/13/10 11:09:38 PM u-s089 /Volumes/108/GO00577/MathConnects_CA_CRM_10/Ancilliary/Application_Files/C05_.../Volumes/108/GO00577/MathConnects_CA_CRM_10/Ancilliary/Application_Files/C05_...

P rinter P DF

Copyright ©

Macm

illan/McG

raw-H


cGraw

-Hill C

ompanies, Inc.


Answers (Lesson 5-1)

pygp

Chapter Resources

Gra

de 2

7

Cha

pter

5

Nam

e

2N

S2

.35

-1S

kil

ls P

rac

tic

e

Add

Ten

s

Ad

d.

1

. 6

tens

+ 3

tens

=

9 te

ns

3 te

ns +

2 te

ns =

5

tens

60

+ 3

0 =

90

30

+ 2

0 =

50

2

.

30

50

20

10

60+

40

+ 2

0 +

30

+ 7

0 +

10

70

7050

8070

3

.

30

40

20

70

40+

50

+ 2

0+

60

+ 2

0+

40

80

6080

9080

4

.

50

10

30

40

80+

10

+ 2

0+

30

+ 5

0+

10

6030

6090

90

So

lve

.

5

. B

ob s

ees

10 tr

ees

near

his

sch

ool.

He

sees

20

tree

s at

the

park

. How

man

y tr

ees

does

he

see

in a

ll?30

tree

s

6

. T

here

are

30

kids

sw

imm

ing

at th

e po

ol. T

here

are

40

kids

sw

imm

ing

at th

e be

ach.

How

man

y ki

ds a

re s

wim

min

g in

all?

70 k

ids

006_

010_

C05

L1_1

0580

4.in

dd P

age

7 5

/10/

10 5

:24:

54 P

M s

-087

/Vol

umes

/108

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0057

7/M

athC

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cts_

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iary

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licat

ion_

File

s/C

05_.

..

Nam

e

Gra

de 2

6

Cha

pter

5

2N

S2

.3

+

2 te

ns+

4 te

ns

You

can

use

2

+ 4

= 6

to

add

20

+ 4

0 =

60.

2

tens

+

4

tens

=

6 te

ns

2

0 +

40

=

60

Ad

d.

Us

e t

he

ad

dit

ion

fa

cts

an

d c

ou

nte

rs t

o h

elp

.

Re

tea

ch

Add

Ten

s

5-1

1.

+

3 te

ns+

1 te

n

3

tens

+ 1

ten

=

4 te

ns

30 +

10

=

40

2.

+

2 te

ns+

5 te

ns

2

tens

+ 5

tens

=

7 te

ns

20 +

50

=

70

3.

+

3 te

ns+

6 te

ns

3

tens

+ 6

tens

=

9 te

ns

30 +

60

=

90

4.

+

4 te

ns+

4 te

ns

4

tens

+ 4

tens

=

8 te

ns

40 +

40

=

80

5.

+

3 te

ns+

2 te

ns

3

tens

+ 2

tens

=

5 te

ns

30 +

20

=

50

6.

+

7 te

ns+

1 te

n

7

tens

+ 1

ten

=

8 te

ns

70 +

10

=

80

006_

010_

C05

L1_1

0580

4.in

dd P

age

6 5

/10/

10 5

:24:

47 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..


P rinter P DF

Cop

yrig

ht ©

Mac

mill

an/M

cGra

w-H

ill, a

div

isio

n of

The

McG

raw

-Hill

Com

pani

es, I

nc.



An

swer

s

pygp

Chapter Resources

Gra

de 2

9

Cha

pter

5

Nam

e

2N

S2

.35

-1P

rob

lem

-So

lvin

g P

rac

tic

e

Add

Ten

s

So

lve

. U

se

ad

dit

ion

fa

cts

to

he

lp.

1

. Ja

ke h

as 5

0 bl

ue m

arbl

es.

His

sis

ter

has

40 g

reen

m

arbl

es. H

ow m

any

mar

bles

do

they

hav

e in

all?

90 m

arbl

es

2

. S

ue h

as 1

0 gu

ppie

s. H

er

frie

nd H

alle

y ha

s 20

. How

m

any

gupp

ies

do th

e gi

rls

have

in a

ll?30

gup

pies

3

. C

orey

has

60

anim

al

stam

ps. H

e ha

s 20

spa

ce

stam

ps. H

ow m

any

stam

ps

does

he

have

alto

geth

er?

80 s

tam

ps

4

. E

lla ta

kes

30 p

ictu

res

of h

er

trip

. Her

bro

ther

, Ed,

take

s 40

pic

ture

s. H

ow m

any

tota

l pi

ctur

es d

o th

ey h

ave?

70 p

ictu

res

5

. M

inny

has

30

plai

n st

icke

rs.

She

has

twic

e as

man

y st

riped

stic

kers

. How

man

y st

icke

rs d

oes

she

have

in

all?

90 s

ticke

rs

6

. S

teve

has

thirt

y pa

per

airp

lane

s. H

is fr

iend

Sal

ha

s te

n fe

wer

airp

lane

s.

How

man

y pa

per

airp

lane

s do

the

two

frie

nds

have

?50

pla

nes

006_

010_

C05

L1_1

0580

4.in

dd P

age

9 5

/10/

10 5

:24:

54 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..

Nam

e

Gra

de 2

8

Cha

pter

5

2N

S2

.3H

om

ew

ork

Pra

cti

ce

Add

Ten

s

Ad

d.

1

. 7

tens

+ 2

tens

=

9 te

ns

2.

1 te

n +

7 te

ns =

8

tens

70 +

20

=

90

10

+ 7

0 =

80

6 te

ns +

2 te

ns =

8

tens

5

tens

+ 4

tens

=

9 te

ns

60 +

20

=

80

50

+ 4

0 =

90

3

.

20

30

40

20

50+

40

+ 4

0+

30

+ 6

0+

30

60

7070

8080

4

.

30

40

80

10

20+

30

+ 2

0+

10

+ 6

0+

70

60

6090

7090

Ad

d t

en

s t

o s

olv

e.

5-1

5

. O

ne b

ox h

olds

10

pape

r cl

ips.

Ano

ther

box

hol

ds

50 p

aper

clip

s. H

ow m

any

pape

r cl

ips

in a

ll?60

pap

er c

lips

6

. Ly

dia

colle

cts

20 r

ed p

enci

ls.

She

has

twic

e as

man

y bl

ack

penc

ils a

s re

d pe

ncils

. H

ow m

any

penc

ils d

oes

Lydi

a ha

ve in

all?

60 p

enci

ls

006_

010_

C05

L1_1

0580

4.in

dd P

age

8 5

/10/

10 5

:24:

54 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..


P rinter P DF

Copyright ©

Macm

illan/McG

raw-H


cGraw

-Hill C

ompanies, Inc.


Answers (Lessons 5-1 and 5-2)

pygp

Chapter Resources

Gra

de 2

11

C

hapt

er 5

Nam

e

2A

F1

.2

Co

un

t o

n t

o a

dd

. U

se

th

e h

un

dre

d c

ha

rt t

o h

elp

.

109

87

65

43

2

2019

1817

1615

1413

12

1 11

3029

2827

2625

2423

21

4039

3837

3635

3433

31

5049

4847

4645

4443

41

6059

5857

5655

5453

51

7069

6867

6665

6463

61

8079

7877

7675

7473

71

9089

8887

8685

8483

81

100

9998

9796

9594

9391

22 32 42 52 62 72 82 92

Cou

nt o

n by

tens

to a

dd.

45 +

20

=

65

45

, 55

, 65

Cou

nt o

n by

one

s to

add

.

21

+ 3

=

24

21

, 22

, 23

, 24

Co

un

t o

n t

o a

dd

. W

rite

th

e s

um

.

1

. 18

+ 3

0 =

48

Cou

nt b

y te

ns. 1

8,

28,

38,

48

2

. 31

+ 4

=

35

Cou

nt b

y on

es. 3

1,

32,

33,

34,

35

3

. 65

+ 3

=

68

4.

37 +

20

=

57

5

. 57

+ 1

0 =

67

6

. 41

+ 4

0 =

81

7

. 21

+ 8

=

29

8.

36 +

3 =

39

9

. 43

+ 5

0 =

93

1

0.

62 +

7 =

69

Re

tea

ch

Cou

nt O

n T

ens

and

One

s

5-2

011_

015_

C05

L2_1

0580

4.in

dd P

age

11 5

/10/

10 5

:25:

38 P

M s

-087

/Vol

umes

/108

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0057

7/M

athC

onne

cts_

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_CR

M_1

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licat

ion_

File

s/C

05_.

..

Nam

e

Gra

de 2

10

C

hapt

er 5

2N

S2

.35

-1E

nri

ch

Men

tal M

ath

50

Thi

nk 5

+ 7

= 1

2 S

o 50

+ 7

0 =

120

+

70

20

+

20

Thi

nk 2

+ 2

= 4

S

o 20

+ 2

0 =

40

1.

40

+

20

Thi

nk

4 +

2

=

6

So

40 +

20

= 60

2.

60

+

30

Thi

nk

6 +

3

=

9

So

60 +

30

= 90

3.

50

+

40

Thi

nk

5 +

4

=

9

So

50 +

40

= 90

Fil

l in

ad

de

nd

s t

o m

ak

e 1

00

.

Thi

nk a

bout

the

num

ber

com

bina

tions

that

equ

al 1

0. U

se th

e co

mbi

natio

ns a

s hi

nts

to fi

nd a

dden

ds th

at h

ave

a su

m o

f 10

0.

An

swer

s w

ill

vary

.

4. _

__ +

___

= 1

00

5.

___

+ _

__ =

100

6. _

__ +

___

= 1

00

7.

___

+ _

__ =

100

8

. ___

+ _

__ =

100

9

. __

_ +

___

= 1

00

10

. ___

+ _

__ =

100

1

1.

___

+ _

__ =

100

006_

010_

C05

L1_1

0580

4.in

dd P

age

10 5

/13/

10 4

:27:

06 P

M e

lhi-4

/Vol

umes

/108

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0057

7/M

athC

onne

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_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..


P rinter P DF

Cop

yrig

ht ©

Mac

mill

an/M

cGra

w-H

ill, a

div

isio

n of

The

McG

raw

-Hill

Com

pani

es, I

nc.



An

swer

s

pygp

Chapter Resources

Gra

de 2

13

C

hapt

er 5

Nam

e

2A

F1

.25

-2H

om

ew

ork

Pra

cti

ce

Cou

nt O

n T

ens

and

One

s

Co

un

t o

n t

o a

dd

. W

rite

th

e s

um

.

1

.

47

73

42

24+

40

+ 2

0+

50

+ 2

487

93

9248

2

.

22

41

34

34+

33

+ 5

6+

22

+ 3

555

97

5669

3

. 28

+ 4

0 =

68

38

+ 1

=

39

77 +

11

=

88

4

. 65

+ 3

0 =

95

76

+ 2

=

78

55 +

44

=

Co

un

t o

n t

o s

olv

e.

5

. T

here

are

thirt

y-th

ree

child

ren

in s

wim

cla

ss.

The

re a

re fo

rty

child

ren

in

divi

ng c

lass

. How

man

y ch

ildre

n ar

e th

ere

in a

ll?73

chi

ldre

n

6

. T

wen

ty-s

even

boy

s an

d th

irty-

two

girls

are

lear

ning

vo

lleyb

all.

How

man

y ch

ildre

n in

all

are

lear

ning

vo

lleyb

all?

59 c

hild

ren

7

. Lo

ok b

ack

over

the

page

. Circ

le a

ny s

um th

at is

the

resu

lt of

addi

ng d

oubl

es.

See

pro

ble

m 1

for

dou

ble

s.

The

n dr

aw tw

o ci

rcle

s ar

ound

any

sum

that

is th

e re

sult

of

addi

ng d

oubl

es p

lus

one.

See

pro

ble

ms

2 an

d 4

for

dou

ble

s p

lus

one.99

011_

015_

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010

:16:

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umes

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iary

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licat

ion_

File

s/C

05_.

..

Nam

e

Gra

de 2

12

C

hapt

er 5

2A

F1

.2S

kil

ls P

rac

tic

e

Cou

nt O

n T

ens

and

One

s

Co

un

t o

n t

o a

dd

. W

rite

th

e s

um

.

1

. 43

+ 2

0 =

63

35 +

30

=

65

2

. 18

+ 4

0 =

58

51 +

10

=

61

3

.

62

24

40

13

55+

10

+ 3

0+

28

+ 7

0+

20

72

5468

8375

4

.

20

34

5 80

48

+ 4

9 +

20

+ 4

4+

11

+ 4

069

54

4991

88

5

.

35

20

30

36

17+

10

+ 5

3+

13

+ 5

0+

30

45

7343

8647

6

.

44

38

60

70

57+

40

+ 2

0+

18

+ 2

3+

10

84

5878

9367

So

lve

.

5-2

7

. T

here

are

30

child

ren

in th

e se

cond

gra

de. T

here

are

45

child

ren

in th

e th

ird g

rade

. H

ow m

any

child

ren

are

ther

e in

all?

75 c

hild

ren

8

. T

he s

choo

l get

s 40

new

m

ath

book

s. T

hey

also

get

32

new

spe

lling

boo

ks. H

ow

man

y ne

w b

ooks

do

they

ha

ve n

ow?

72 b

ooks

011_

015_

C05

L2_1

0580

4.in

dd P

age

12 5

/10/

10 5

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M s

-087

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umes

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0057

7/M

athC

onne

cts_

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M_1

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ncill

iary

/App

licat

ion_

File

s/C

05_.

..

A01_A33_C05AN_105804.indd Page A5 5/14/10 10:29:02 PM elhi-4A01_A33_C05AN_105804.indd Page A5 5/14/10 10:29:02 PM elhi-4 /Volumes/108/GO00577/MathConnects_CA_CRM_10/Ancilliary/Application_Files/C05_.../Volumes/108/GO00577/MathConnects_CA_CRM_10/Ancilliary/Application_Files/C05_...


Copyright ©

Macm

illan/McG

raw-H


cGraw

-Hill C

ompanies, Inc.



pygp

Chapter Resources

Gra

de 2

15

C

hapt

er 5

Nam

e

2A

F1

.2E

nri

ch

Wel

l don

e!

Wri

te t

he

nu

mb

er

on

th

e l

ine

th

at

is 1

0 m

ore

, th

en

sh

ad

e i

n t

ha

t n

um

be

r o

n t

he

hu

nd

red

gri

d.

109

87

65

43

2

2019

1817

1615

1413

12

1 11

3029

2827

2625

2423

21

4039

3837

3635

3433

31

5049

4847

4645

4443

41

6059

5857

5655

5453

51

7069

6867

6665

6463

61

8079

7877

7675

7473

71

9089

8887

8685

8483

81

100

9998

9796

9594

9391

22 32 42 52 62 72 82 92

1.

43

53

67

77

17

27

63

73

2.

87

97

5 15

23

33

44

54

3.

47

57

45

55

83

93

3 13

4.

77

87

27

37

6 16

53

63

5.

13

23

57

67

46

56

33

43

6.

37

47

7 17

4

14

73

83

5-2

011_

015_

C05

L2_1

0580

4.in

dd P

age

15 5

/10/

10 5

:25:

40 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..

Nam

e

Gra

de 2

14

C

hapt

er 5

2A

F1

.25

-2P

rob

lem

-So

lvin

g P

rac

tic

e

Cou

nt O

n T

ens

and

One

s

Co

un

t o

n t

o s

olv

e.

1

. T

here

are

15

bana

na

muf

fins

and

3 ca

rrot

muf

fins

at a

bak

e sa

le. W

rite

a nu

mbe

r se

nten

ce th

at te

lls

how

man

y m

uffin

s th

ere

are.

15+

3

=

18

2

. M

r. C

han

sells

32

cart

ons

of

milk

on

Mon

day.

He

sells

20

cart

ons

of m

ilk to

day.

Writ

e a

num

ber

sent

ence

that

tells

ho

w m

any

tota

l car

tons

of

milk

he

sells

.32

+

20

=

52

3

. G

lend

a se

lls 4

6 pu

ppy

trea

ts. R

ene

sells

30

cat

trea

ts. H

ow m

any

trea

ts d

id

they

sel

l in

all?

76 tr

eats

4

. M

rs. H

all c

uts

30 p

iece

s of

ca

ke. M

r. C

obb

cuts

48

piec

es

of c

ake.

How

man

y pi

eces

of

cake

are

ther

e in

all?

78 p

iece

s of

cak

e

5

. T

oni b

uys

a ta

rt fo

r 30

cent

s.

Lou

buys

a p

ie fo

r tw

ice

that

am

ount

. Writ

e a

num

ber

sent

ence

to te

ll ho

w m

uch

Lou

pays

for h

is p

ie.

30+

30

=

60

Writ

e a

num

ber

sent

ence

to

tell

how

muc

h T

oni a

nd L

ou

spen

d to

geth

er.

30+

60

=

90

6

. H

al s

pend

s 35

cen

ts o

n m

ilk

and

20 c

ents

for

one

frui

t ba

r. T

ia b

uys

two

frui

t bar

s.

Writ

e a

num

ber

sent

ence

th

at te

lls h

ow m

uch

Tia

sp

ends

on

frui

t bar

s.

20 +

20

=

40

How

muc

h do

Hal

and

Tia

sp

end

in a

ll?95

cen

ts

011_

015_

C05

L2_1

0580

4.in

dd P

age

14 5

/5/1

0 1

0:08

:30

PM

elh

i-2/V

olum

es/1

08/G

O00

577/

Mat

hCon

nect

s_C

A_C

RM

_12/

Anc

illia

ry/A

pplic

atio

n_F

iles/

C06

_...


P rinter P DF

Cop

yrig

ht ©

Mac

mill

an/M

cGra

w-H

ill, a

div

isio

n of

The

McG

raw

-Hill

Com

pani

es, I

nc.



An

swer

s

pygp

Chapter Resources

Gra

de 2

17

C

hapt

er 5

Nam

e

2A

F1

.2,

2M

R1

.05

-3R

ete

ac

h (

2)

Pro

blem

-Sol

ving

Str

ateg

y: W

ork

Bac

kwar

d (c

ontin

ued)

Wo

rk b

ac

kw

ard

to

so

lve

.

1

. S

eren

a w

ins

seve

n m

ore

gam

es th

an L

ex d

oes.

Lex

w

ins

five

mor

e ga

mes

than

M

aria

doe

s. M

aria

win

s si

x ga

mes

. How

man

y ga

mes

do

es S

eren

a w

in?

18 g

ames

2

. In

a h

ot d

og e

atin

g co

ntes

t, Y

oshi

eat

s 10

mor

e ho

t dog

s th

an E

li do

es. E

li ea

ts 6

m

ore

hot d

ogs

than

Mau

ry.

Mau

ry e

ats

8 ho

t dog

s. H

ow

man

y ho

t dog

s do

es Y

oshi

ea

t? 24 h

ot d

ogs

3

. In

a b

eanb

ag to

ss, R

uby

scor

es 4

0 m

ore

poin

ts th

an

Cla

re. C

lare

sco

res

30 m

ore

poin

ts th

an A

nna,

and

Ann

a sc

ores

20

poin

ts. H

ow m

any

poin

ts d

oes

Rub

y sc

ore?

90 p

oint

s

5

. Ju

an c

olle

cts

14 m

ore

leav

es th

an M

ia fo

r sc

ienc

e cl

ass.

Mia

col

lect

s 12

mor

e le

aves

than

Max

. Max

co

llect

s 9

leav

es. H

ow m

any

leav

es d

oes

Juan

col

lect

?35

leav

es

4

. A

t the

zoo

toda

y, fo

rty

mor

e pe

ople

wat

ch th

e lio

ns th

an

the

bear

s. T

wen

ty m

ore

peop

le w

atch

the

bear

s th

an

the

seal

s. T

wen

ty p

eopl

e w

atch

the

seal

s. H

ow m

any

peop

le w

atch

the

lions

?80

peo

ple

016_

020_

C05

L3_1

0580

4.in

dd P

age

17 5

/8/1

0 5

:46:

21 P

M u

-s07

3/V

olum

es/1

08/G

O00

577/

Mat

hCon

nect

s_C

A_C

RM

_10/

Anc

illia

ry/A

pplic

atio

n_F

iles/

C05

_...

Nam

e

Gra

de 2

16

C

hapt

er 5

2A

F1

.2,

2M

R1

.0

Mik

e sc

ores

10

mor

e po

ints

than

Sar

a.

Sar

a sc

ores

5 m

ore

poin

ts th

an D

es d

oes.

D

es s

core

s 6

poin

ts.

How

man

y po

ints

doe

s M

ike

scor

e?

Re

tea

ch

(1

)

Pro

blem

-Sol

ving

Str

ateg

y: W

ork

Bac

kwar

d

5-3

Wh

at

do

I k

no

w?

• M

ike

scor

es

10 m

ore

poin

ts th

an S

ara.

• S

ara

scor

es

5 m

ore

poin

ts th

an D

es.

• D

es s

core

s 6

poi

nts.

Wh

at

do

I n

ee

d t

o f

ind

?

• H

ow m

any

poin

ts M

ike

scor

es.

Un

de

rsta

nd

Ste

p 1

Pla

n

Ste

p 2

So

lve

Ste

p 3

Wo

rk b

ac

kw

ard

.

• D

es s

core

s 6

poin

ts. S

ara

scor

es 5

mor

e th

an D

es.

S

ara

scor

es

6

+

5

= 11

poi

nts.

• M

ike

scor

es 1

0 m

ore

than

Sar

a.

M

ike

scor

es 1

1

+ 1

0

= 21

poi

nts.

I kn

ow h

ow m

any

poin

ts D

es s

core

s, s

o I

can

star

t the

re a

nd w

ork

back

war

d.

Ste

p 4

Doe

s m

y an

swer

mak

e se

nse?

Yes

No

Ch

ec

k

016_

020_

C05

L3_1

0580

4.in

dd P

age

16 5

/5/1

0 1

0:09

:45

PM

elh

i-2/V

olum

es/1

08/G

O00

577/

Mat

hCon

nect

s_C

A_C

RM

_12/

Anc

illia

ry/A

pplic

atio

n_F

iles/

C06

_...


P rinter P DF

Copyright ©

Macm

illan/McG

raw-H


cGraw

-Hill C

ompanies, Inc.



pygp

Chapter Resources

Gra

de 2

19

C

hapt

er 5

Nam

e

2A

F1

.2,

2M

R1

.05

-3H

om

ew

ork

Pra

cti

ce

Pro

blem

-Sol

ving

Str

ateg

y: W

ork

Bac

kwar

d

So

lve

. W

ork

ba

ck

wa

rd.

Sh

ow

yo

ur

wo

rk.

1

. U

ncle

Joe

pla

ns to

brin

g 12

mor

e ho

t dog

s to

the

picn

ic th

an

Aun

t Pat

ty. A

unt P

atty

will

brin

g 5

mor

e ho

t dog

s th

an G

rand

pa.

Gra

ndpa

will

brin

g 10

hot

dog

s. H

ow m

any

hot d

ogs

will

Unc

le

Joe

brin

g?27

hot

dog

sA

un

t P

atty

bri

ngs

5 +

10

= 1

5; U

ncl

e Jo

e b

rin

gs 1

5 +

12

= 2

7.

2

. S

elm

a br

ings

5 m

ore

chic

kens

than

her

sis

ter

Lee

does

. Le

e br

ings

4 c

hick

ens.

Ira

brin

gs 6

mor

e ch

icke

ns th

an S

elm

a.

How

man

y ch

icke

ns d

oes

Ira

brin

g?

15 c

hick

ens

Selm

a b

rin

gs 5

+ 4

= 9

; Ir

a b

rin

gs 6

+ 9

= 1

5.

3

. A

unt A

lice

bake

s se

ven

pies

for

the

picn

ic. E

mil

bake

s fo

ur

mor

e pi

es th

an A

unt A

lice.

Sue

bak

es s

ix m

ore

pies

than

Em

il.

How

man

y pi

es d

oes

Sue

bak

e fo

r th

e pi

cnic

?17

pie

s Em

il b

akes

7 +

4 =

11;

Su

e b

akes

11

+ 6

= 1

7.

4

. C

arol

alw

ays

brin

gs m

elon

s to

the

picn

ic. T

his

year

, she

will

br

ing

5 m

ore

mel

ons

than

Kay

la. K

ayla

will

brin

g 3

mor

e m

elon

s th

an M

att.

Mat

t will

brin

g 2

mel

ons.

How

man

y m

elon

s w

ill C

arol

brin

g to

the

picn

ic?

10 m

elon

sK

ayla

bri

ngs

2 +

3 =

5;

Caro

l b

rin

gs 5

+ 5

= 1

0.

016_

020_

C05

L3_1

0580

4.in

dd P

age

19 5

/5/1

0 1

0:10

:04

PM

elh

i-2/V

olum

es/1

08/G

O00

577/

Mat

hCon

nect

s_C

A_C

RM

_12/

Anc

illia

ry/A

pplic

atio

n_F

iles/

C06

_...

Nam

e

Gra

de 2

18

C

hapt

er 5

2A

F1

.2,

2M

R1

.0S

kil

ls P

rac

tic

e

Pro

blem

-Sol

ving

Str

ateg

y: W

ork

Bac

kwar

d

So

lve

. W

ork

ba

ck

wa

rd.

Sh

ow

yo

ur

wo

rk.

5-3

1

. A

nn’s

dog

doe

s 4

mor

e tr

icks

than

Ben

’s d

og. B

en’s

do

g do

es 9

mor

e tr

icks

than

Li

sa’s

dog

. Lis

a’s

dog

does

5

tric

ks. H

ow m

any

tric

ks

does

Ann

’s d

og d

o?5

+ 9

= 1

4; 1

4 +

4 =

18

18

tric

ks

2

. G

reen

Sta

ble

has

12 m

ore

hors

es th

an H

appy

Gle

n.

Hap

py G

len

has

9 m

ore

hors

es th

an S

un F

arm

. Sun

F

arm

has

7 h

orse

s. H

ow

man

y ho

rses

doe

s G

reen

S

tabl

e ha

ve?

7 +

9 =

16;

16

+ 1

2 =

28

28 h

orse

s

3.

Dan

has

twen

ty fi

sh in

five

di

ffere

nt ta

nks.

Ahm

al h

as

eigh

t mor

e fis

h th

an D

an.

The

ir fr

iend

And

i has

ten

mor

e fis

h th

an A

hmal

. How

m

any

fish

does

And

i hav

e?20

+ 8

= 2

8; 2

8 +

10

= 3

8

38 fi

sh

5

. D

ora’

s D

iner

has

3 m

ore

brea

kfas

t spe

cial

s th

an th

e T

ip-T

op G

rill.

The

Tip

-Top

G

rill h

as 1

1 m

ore

brea

kfas

t sp

ecia

ls th

an C

harli

e’s

Caf

e. C

harli

e’s

Caf

e ha

s 6

brea

kfas

t spe

cial

s. H

ow

man

y br

eakf

ast s

peci

als

does

Dor

a’s

Din

er h

ave?

6 +

11

= 1

7; 1

7 +

3 =

20

20

spe

cial

s

4

. In

one

wee

k, K

itty

Res

cue

save

s 12

cat

s. T

hat s

ame

wee

k, C

arin

g P

aws

save

s 6

mor

e ca

ts th

an K

itty

Res

cue.

H

ere

Kitt

y K

itty

save

s 10

m

ore

cats

than

Car

ing

Paw

s. H

ow m

any

cats

did

H

ere

Kitt

y K

itty

save

?12

+ 6

= 1

8; 1

8 +

10

= 2

8

28 c

ats

016_

020_

C05

L3_1

0580

4.in

dd P

age

18 5

/10/

10 5

:26:

14 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..


P rinter P DF

Cop

yrig

ht ©

Mac

mill

an/M

cGra

w-H

ill, a

div

isio

n of

The

McG

raw

-Hill

Com

pani

es, I

nc.



An

swer

s

pygp

Chapter Resources

Gra

de 2

21

C

hapt

er 5

Nam

e

2A

F1

.0,

2M

R1

.2

Ad

d.

Re

gro

up

wh

en

yo

u h

av

e 1

0 o

ne

s.

Ste

p 1

S

tep

2

18

18

+ 6

+

6

24

Add

the

ones

.

Add

the

tens

.

14 o

nes

= 1

ten

4 o

nes

Ad

d.

Re

gro

up

wh

en

yo

u h

av

e 1

0 o

ne

s.

Ste

p 1

S

tep

2

1

. 2

4

24

+ 7

+

7

Add

the

ones

.

Add

the

tens

.

11 o

nes

= 1

ten

1 o

ne

2

.

36

3

6+

6

+ 6

42

A

dd th

e on

es.

A

dd th

e te

ns.

12 o

nes

= 1

ten

2 o

nes

11 11 11

Re

tea

ch

Reg

roup

One

s as

Ten

s

5-4

31

021_

025_

C05

L4_1

0580

4.in

dd P

age

21 5

/10/

10 5

:28:

25 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..

Nam

e

Gra

de 2

20

C

hapt

er 5

2A

F1

.2,

2M

R1

.05

-3E

nri

ch

Pet

Pou

nds

Can

you

figu

re o

ut h

ow m

uch

each

dog

wei

ghs?

smal

l dog

+ s

mal

l dog

+ la

rge

dog

+ la

rge

dog

= 8

0 po

unds

smal

l dog

+ la

rge

dog

+ la

rge

dog

= 7

0 po

unds

smal

l dog

+ la

rge

dog

= 4

0 po

unds

The

sm

all d

og w

eigh

s 10

pou

nds.

The

big

dog

wei

ghs

30 p

ound

s.

Thi

s is

how

I s

olve

d th

e pr

oble

m:

An

swer

s w

ill

vary

.

016_

020_

C05

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File

s/C

05_.

..


P rinter P DF

Copyright ©

Macm

illan/McG

raw-H


cGraw

-Hill C

ompanies, Inc.



pygp

Chapter Resources

Gra

de 2

23

C

hapt

er 5

Nam

e

2A

F1

.0,

2M

R1

.25

-4H

om

ew

ork

Pra

cti

ce

Reg

roup

One

s as

Ten

s

Ad

d.

Add

the

ones

. A

dd th

e te

ns.

Do

you

regr

oup?

Writ

e th

e su

m.

1

.24

+ 7

2 te

ns11

one

sye

s

no24

+ 7

= 31

2

.36

+ 8

3 te

ns14

one

sye

s

no36

+ 8

= 44

3

.28

+ 5

2 te

ns13

one

sye

s

no28

+ 5

= 33

4

.47

+ 4

4 te

ns11

one

sye

s

no47

+ 4

= 51

5

.23

+ 3

2 te

ns6

one

sye

s

no23

+ 3

= 26

6

. La

st y

ear,

12

band

s m

arch

ed in

the

para

de. T

his

year

, 9 b

ands

m

arch

ed in

the

para

de. H

ow m

any

band

s m

arch

ed in

all?

21 b

ands

7

. N

ine

clow

ns w

alk

in S

atur

day’

s pa

rade

. Tw

enty

-thr

ee c

low

ns

driv

e a

tiny

car.

How

man

y cl

owns

are

in S

atur

day’

s pa

rade

?32

clo

wns

8

. Lo

ok o

ver

the

prob

lem

s on

this

pag

e. D

raw

a c

ircle

aro

und

any

sum

that

has

a 3

in th

e on

es p

lace

. Se

e p

rob

lem

3.

The

n dr

aw a

box

aro

und

any

sum

that

has

a 5

in th

e te

ns

plac

e.

See

pro

ble

m 4

.

021_

025_

C05

L4_1

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4.in

dd P

age

23 5

/5/1

0 1

0:10

:20

PM

elh

i-2/V

olum

es/1

08/G

O00

577/

Mat

hCon

nect

s_C

A_C

RM

_12/

Anc

illia

ry/A

pplic

atio

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iles/

C06

_...

Nam

e

Gra

de 2

22

C

hapt

er 5

2A

F1

.0,

2M

R1

.2S

kil

ls P

rac

tic

e

Reg

roup

One

s as

Ten

s

Us

e W

ork

Ma

t 6

an

d

to

ad

d.

Add

the

ones

. A

dd th

e te

ns.

Do

you

re

grou

p?W

rite

the

sum

.

1.

15 +

71

tens

12

one

sye

s

no

15

+

7 22

2

. 34

+ 6

3 te

ns 10

one

sye

s

no

34

+ 6 40

3

.52

+ 7

5 te

ns

9 o

nes

yes

no

52

+ 7 59

4

.73

+ 5

7 te

ns

8 o

nes

yes

no

73

+ 5 78

So

lve

.

5-4

5

. S

am h

as 9

3 st

amps

. Len

gi

ves

him

4 m

ore.

How

m

any

stam

ps d

oes

Sam

ha

ve n

ow?

97 s

tam

ps

6

. T

here

are

17

stud

ents

in th

e ju

mp-

rope

clu

b. 8

mor

e jo

in.

How

man

y st

uden

ts a

re in

th

e cl

ub n

ow?

25 s

tude

nts

021_

025_

C05

L4_1

0580

4.in

dd P

age

22 5

/10/

10 5

:28:

27 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..


P rinter P DF

Cop

yrig

ht ©

Mac

mill

an/M

cGra

w-H

ill, a

div

isio

n of

The

McG

raw

-Hill

Com

pani

es, I

nc.



An

swer

s

pygp

Chapter Resources

Gra

de 2

25

C

hapt

er 5

Nam

e

2A

F1

.0,

2M

R1

.2E

nri

ch

Dan

ny’s

Dim

es

Jaco

b co

llect

s pe

nnie

s. D

anny

col

lect

s di

mes

. Dan

ny h

as o

ffere

d to

giv

e Ja

cob

5 di

mes

for

all o

f his

pen

nies

.

Hel

p Ja

cob

to d

ecid

e if

this

is a

fair

trad

e. H

e kn

ows

that

ten

penn

ies

= o

ne d

ime.

Circ

le g

roup

s of

ten

penn

ies.

A

nsw

ers

wil

l va

ry.

How

man

y di

mes

sho

uld

Dan

ny g

ive

him

to m

ake

an e

qual

trad

e?

6 d

imes

How

man

y pe

nnie

s w

ill b

e le

ft? 8

pen

nie

s

5-4

021_

025_

C05

L4_1

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4.in

dd P

age

25 5

/10/

10 5

:28:

28 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..

Nam

e

Gra

de 2

24

C

hapt

er 5

2A

F1

.0,

2M

R1

.25

-4P

rob

lem

-So

lvin

g P

rac

tic

e

Reg

roup

One

s as

Ten

s

Ad

d.

Te

ll h

ow

ma

ny

on

es

an

d t

en

s.

1

. R

ich

plan

ted

18 s

eeds

last

ye

ar. T

his

year

he

plan

ts

8 m

ore.

How

man

y se

eds

has

he p

lant

ed in

all?

1 te

n 16

one

s 26

see

ds

2

. H

al h

as 6

3 sh

ells

. He

adds

3

mor

e to

his

col

lect

ion.

How

m

any

shel

ls d

oes

he h

ave

now

? 6 te

ns

6 o

nes

66 s

hells

3

. C

asey

has

35

nuts

. G

rand

mot

her g

ives

him

7

mor

e. H

ow m

any

tota

l nu

ts d

oes

Cas

ey h

ave?

3 te

ns

12 o

nes

42 n

uts

4

. M

rs. S

teve

n m

ade

65 y

arn

bunn

ies.

Thi

s w

eek

she

will

mak

e 6

mor

e bu

nnie

s.

How

man

y bu

nnie

s w

ill s

he

have

then

?6

tens

11

one

s 71

bun

nies

5

. K

at h

as e

ight

een

book

s.

Her

sis

ter

has

nine

boo

ks.

Tog

ethe

r, h

ow m

any

book

s do

the

sist

ers

have

?1

ten

17 o

nes

27 b

ooks

6

. M

arvi

n w

ins

thirt

y-fiv

e m

arbl

es th

is s

umm

er. H

e w

on s

ix m

arbl

es la

st y

ear.

H

ow m

any

did

he w

in in

bo

th y

ears

?3

tens

11

one

s 41

mar

bles

021_

025_

C05

L4_1

0580

4.in

dd P

age

24 5

/10/

10 5

:28:

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M s

-087

/Vol

umes

/108

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0057

7/M

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onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..


P rinter P DF

Copyright ©

Macm

illan/McG

raw-H


cGraw

-Hill C

ompanies, Inc.



pygp

Chapter Resources

Gra

de 2

27

C

hapt

er 5

Nam

e

2A

F1

.0,

2M

R1

.25

-5S

kil

ls P

rac

tic

e

Add

One

-Dig

it N

umbe

rs a

nd T

wo-

Dig

it N

umbe

rs

Us

e W

ork

Ma

t 6

an

d

to

ad

d.

1

. on

este

ns

+

27 9 6

31

2

.on

este

ns

+

43 7 0

1 5

3

. on

este

ns

+

55 7 2

61

4

.on

este

ns

+

54 8 2

1 6

5

. on

este

ns

+

32 8 0

41

6

. on

este

ns

+

65 9 4

1 7

So

lve

.

7

. Ja

na s

core

s 18

poi

nts

in

the

first

hal

f of a

gam

e. S

he

scor

es 6

mor

e po

ints

in th

e se

cond

hal

f. H

ow m

any

poin

ts d

oes

she

scor

e in

all?

24 p

oint

s

8

. 22

par

ents

com

e to

wat

ch

the

gam

e. 9

frie

nds

also

co

me.

How

man

y to

tal

peop

le c

ome

to w

atch

th

e ga

me?

31 p

eopl

e

026_

030_

C05

L5_1

0580

4.in

dd P

age

27 5

/10/

10 5

:29:

02 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..

Nam

e

Gra

de 2

26

C

hapt

er 5

2A

F1

.0,

2M

R1

.2

Fin

d t

he

su

m.

Re

gro

up

if

yo

u n

ee

d t

o.

Ste

p 1

S

tep

2

16

1

1

6

+

6

2

2

+

6

16

+

6

A

dd th

e on

es.

22

12

one

s =

1 te

n 2

one

s A

dd th

e te

ns.

Ad

d.

Sh

ad

e 1

0 o

ne

s.

Re

gro

up

if

yo

u n

ee

d t

o.

Ste

p 1

S

tep

2

1

. 3

5

CG

C

1

3

5

+

6

4

1

+

6

35

+ 6

A

dd th

e on

es.

41

11

one

s =

1 te

n 1

one

A

dd th

e te

ns.

2

. 2

4

1

2

4

+

9

3

3

+

9

24

+ 9

A

dd th

e on

es.

33

13

one

s =

1 te

n 3

one

s A

dd th

e te

ns.

Re

tea

ch

Add

One

-Dig

it N

umbe

rs a

nd T

wo-

Dig

it N

umbe

rs

5-5

026_

030_

C05

L5_1

0580

4.in

dd P

age

26 5

/10/

10 5

:29:

01 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..


P rinter P DF

Cop

yrig

ht ©

Mac

mill

an/M

cGra

w-H

ill, a

div

isio

n of

The

McG

raw

-Hill

Com

pani

es, I

nc.



An

swer

s

pygp

Chapter Resources

Gra

de 2

29

C

hapt

er 5

Nam

e

2A

F1

.0,

2M

R1

.25

-5P

rob

lem

-So

lvin

g P

rac

tic

e

Add

One

-Dig

it N

umbe

rs a

nd T

wo-

Dig

it N

umbe

rs

So

lve

. R

eg

rou

p i

f y

ou

ne

ed

to

.

1

. F

ran

teac

hes

12 c

hild

ren

to

swim

on

Sat

urda

y m

orni

ngs.

S

he te

ache

s 8

teen

s to

sw

im

on S

atur

day

afte

rnoo

ns.

How

man

y pe

ople

doe

s sh

e te

ach

to s

wim

eac

h S

atur

day?

20 p

eopl

e

2

. H

arry

coa

ches

25

child

ren

in

bask

etba

ll on

Wed

nesd

ays.

O

n S

atur

day,

he

coac

hes

9 m

ore

child

ren.

How

man

y ch

ildre

n do

es h

e co

ach

in a

ll?34

chi

ldre

n

3

. T

he v

endi

ng m

achi

ne h

as

43 c

ans

of o

rang

e ju

ice

and

9 ca

ns o

f app

le ju

ice.

How

m

any

tota

l can

s of

juic

e ar

e th

ere?

52 c

ans

4

. T

he b

all r

ack

hold

s 32

bas

ketb

alls

and

8 s

occe

r ba

lls. H

ow m

any

balls

in a

ll do

es th

e ra

ck h

old?

40 b

alls

5

. T

he d

odge

ball

club

has

fif

teen

mem

bers

. Sev

en

new

mem

bers

join

. How

m

any

mem

bers

doe

s th

e cl

ub h

ave

now

?22

mem

bers

6

. F

ifty-

four

peo

ple

cam

e ea

rly

to th

e T

iger

s’ la

st g

ame.

N

ine

peop

le a

rriv

ed la

te a

nd

coul

d no

t fin

d a

seat

. How

m

any

peop

le c

ame

to th

e ga

me?

63 p

eopl

e

026_

030_

C05

L5_1

0580

4.in

dd P

age

29 5

/10/

10 5

:29:

18 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..

Nam

e

Gra

de 2

28

C

hapt

er 5

2A

F1

.0,

2M

R1

.2H

om

ew

ork

Pra

cti

ce

Add

One

-Dig

it N

umbe

rs a

nd T

wo-

Dig

it N

umbe

rs

Ad

d.

1

.

1

5

6

+

8

6

4

8

4

+

3

8

7

1

6

6

+

6

7

2

1

2

9

+

4

3

3

2

.

1

5

4

+

7

6

1

1

3

7

+

9

4

6

1

2

1

+

9

3

0

1

4

5

+

6

5

1

3

.

1

2

6

+

6

3

2

1

3

5

+

7

4

2

1

5

4

+

9

6

3

1

7

9

+

1

8

0

So

lve

.

4

. F

rank

has

34

trad

ing

card

s. H

e ge

ts 8

mor

e fr

om a

frie

nd.

How

man

y ca

rds

does

he

have

now

?42

car

ds

5

. M

s. I

to h

as 2

4 st

uden

ts. 5

new

stu

dent

s jo

in h

er c

lass

. H

ow m

any

stud

ents

doe

s M

s. I

to h

ave

in a

ll?29

stu

dent

s

6

. Lo

ok a

t all

the

prob

lem

s ab

ove.

Circ

le th

e su

ms

in w

hich

you

re

grou

ped

ones

as

tens

. Se

e p

rob

lem

s ab

ove.

5-5

026_

030_

C05

L5_1

0580

4.in

dd P

age

28 5

/5/1

0 1

0:10

:36

PM

elh

i-2/V

olum

es/1

08/G

O00

577/

Mat

hCon

nect

s_C

A_C

RM

_12/

Anc

illia

ry/A

pplic

atio

n_F

iles/

C06

_...


P rinter P DF

Copyright ©

Macm

illan/McG

raw-H


cGraw

-Hill C

ompanies, Inc.



pygp

Chapter Resources

Gra

de 2

31

C

hapt

er 5

Nam

e

2N

S2

.2,

2A

F1

.3

Pre

pa

rati

on

: A

set

of c

ount

ers

is n

eede

d fo

r th

is a

ctiv

ity.

June

has

28

stic

kers

. P

am g

ives

her

16

mor

e st

icke

rs.

How

man

y st

icke

rs d

oes

June

hav

e no

w?

Ste

p 1

Ste

p 2

S

tep

3

28

10

10

10 11

11

11

11

11

11

11

R

egro

up 1

0 on

es

28

+16

as 1

ten

if yo

u ca

n.

+

16

10

1010

10

11

11

44

Ju

ne h

as

44

stic

kers

.

Ad

d.

Yo

u c

an

us

e c

ou

nte

rs t

o h

elp

. R

eg

rou

p i

f

yo

u n

ee

d t

o.

1

. t

ens

ones

1

3

7

+ 2

7

6

4

t

ens

ones

1

3

5

+ 1

5

5

0

t

ens

ones

1

4

8

+ 2

5

7

3

t

ens

ones

1

1

4

+ 2

3

3

7

2

. t

ens

ones

1

1

9

+ 6

8

8

7

t

ens

ones

3

6

+ 4

3

7

9

t

ens

ones

1

5

4

+ 2

7

8

1

t

ens

ones

1

3

8

+ 2

9

6

7

Re

tea

ch

Add

Tw

o-D

igit

Num

bers

5-6

031_

035_

C05

L6_1

0580

4.in

dd P

age

31 5

/10/

10 5

:29:

55 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..

Nam

e

Gra

de 2

30

C

hapt

er 5

2A

F1

.0,

2M

R1

.25

-5E

nri

ch

Ann

ie’s

Add

ition

Ann

ie is

pra

ctic

ing

addi

tion.

Che

ck A

nnie

’s w

ork.

Writ

e th

e co

rrec

t ans

wer

und

er th

e bo

x.

Col

or th

e bo

xes

yello

w th

at h

ave

the

corr

ect a

nsw

er.

Dra

w a

blu

e X

on

the

prob

lem

s th

at a

re n

ot c

orre

ct.

+7 2124

+8 5042

+3 7168

+7 2519

+7 5851

+5 6863

+4 9893

+5 3732

+7 6457

+9 4243

3150

71

26

58

6897

3764

52

Ann

ie h

as

6 c

orre

ct p

robl

ems.

026_

030_

C05

L5_1

0580

4.in

dd P

age

30 5

/10/

10 5

:29:

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M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..


P rinter P DF

Cop

yrig

ht ©

Mac

mill

an/M

cGra

w-H

ill, a

div

isio

n of

The

McG

raw

-Hill

Com

pani

es, I

nc.



An

swer

s

pygp

Chapter Resources

Gra

de 2

33

C

hapt

er 5

Nam

e

2N

S2

.2,

2A

F1

.35

-6H

om

ew

ork

Pra

cti

ce

Add

Tw

o-D

igit

Num

bers

Ad

d.

1

.

1

3

5

+ 2

5

6

0

1

4

8

+

8

5

6

1

1

5

+ 5

9

7

4

1

2

9

+ 1

8

4

7

2

.

1

5

6

+ 3

5

9

1

1

2

7

+ 2

8

5

5

1

4

+ 3

3

4

7

1

3

7

+ 4

6

8

3

3

.

1

2

3

+

8

3

1

5

4

+ 2

2

7

6

1

4

6

+ 1

9

6

5

1

1

9

+ 3

4

5

3

So

lve

.

4

. Je

nny

sells

32

cups

of

lem

onad

e. B

ruce

sel

ls

17 c

ups.

How

man

y cu

ps

do th

ey s

ell t

oget

her?

49 c

ups

5

. M

r. W

illia

m’s

cla

ss s

ells

45 r

affle

tick

ets.

Ms.

Lin

g’s

clas

s se

lls 4

0. H

ow m

any

ticke

ts d

o th

ey s

ell i

n al

l?85

tick

ets

031_

035_

C05

L6_1

0580

4.in

dd P

age

33 5

/5/1

0 1

0:10

:53

PM

elh

i-2/V

olum

es/1

08/G

O00

577/

Mat

hCon

nect

s_C

A_C

RM

_12/

Anc

illia

ry/A

pplic

atio

n_F

iles/

C06

_...

Nam

e

Gra

de 2

32

C

hapt

er 5

2N

S2

.2,

2A

F1

.3S

kil

ls P

rac

tic

e

Add

Tw

o-D

igit

Num

bers

Pre

pa

rati

on

: B

ase-

ten

bloc

ks a

re n

eede

d fo

r th

is a

ctiv

ity.

Us

e W

ork

Ma

t 6

an

d

to

ad

d.

1

. t

ens

ones

1

2

5

+ 1

7

4

2

t

ens

ones

2

4

+ 1

2

3

6

t

ens

ones

1

3

9

+ 2

5

6

4

t

ens

ones

1

2

2

+ 2

8

5

0

2

. t

ens

ones

1

4

9

+ 1

8

6

7

t

ens

ones

1

2

4

+ 4

9

7

3

t

ens

ones

2

4

+ 3

1

5

5

t

ens

ones

1

4

6

+ 3

9

8

5

So

lve

.

5-6

3

. 46

peo

ple

com

e to

the

mus

eum

in th

e m

orni

ng.

39 m

ore

peop

le c

ome

in

the

afte

rnoo

n. H

ow m

any

peop

le c

ome

to th

e m

useu

m?

85 p

eopl

e

4

. 20

peo

ple

go o

n a

tour

of t

he

fact

ory

in th

e m

orni

ng. 1

7 go

on

a to

ur in

the

afte

rnoo

n.

How

man

y pe

ople

go

on a

to

ur in

all?

37 p

eopl

e

031_

035_

C05

L6_1

0580

4.in

dd P

age

32 5

/10/

10 5

:29:

58 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..


P rinter P DF

Copyright ©

Macm

illan/McG

raw-H


cGraw

-Hill C

ompanies, Inc.



pygp

Chapter Resources

Gra

de 2

35

C

hapt

er 5

Nam

e

2N

S2

.2,

2A

F1

.3E

nri

ch

Pla

y a

Gam

e

Pre

pa

rati

on

: A

coi

n is

nee

ded

for

this

act

ivity

.

Dro

p a

coin

on

the

gam

e bo

ard

two

times

. On

anot

her

piec

e of

pa

per

add

the

two

num

bers

toge

ther

.

The

per

son

with

the

grea

ter

sum

get

s on

e po

int.

You

get

two

poin

ts if

you

hav

e to

reg

roup

whe

n yo

u ad

d.

Mak

e a

scor

e sh

eet a

nd u

se ta

lly m

arks

to k

eep

your

sco

re.

The

firs

t pla

yer

to g

et 1

0 po

ints

win

s th

e ga

me.

1437

5238

2546

1721

4333

2839

2711

4230

6527

9286

5-6

031_

035_

C05

L6_1

0580

4.in

dd P

age

35 5

/10/

10 5

:29:

59 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..

Nam

e

Gra

de 2

34

C

hapt

er 5

2N

S2

.2,

2A

F1

.35

-6P

rob

lem

-So

lvin

g P

rac

tic

e

Add

Tw

o-D

igit

Num

bers

So

lve

.

1

. T

his

mor

ning

Ire

ne p

aint

s fo

r 25

min

utes

. Thi

s af

tern

oon

she

pain

ts fo

r 37

min

utes

. W

rite

a nu

mbe

r sen

tenc

e to

sho

w h

ow m

any

tota

l m

inut

es s

he p

aint

s.25

+

37 =

62

62 m

inut

es

2

. M

r. A

ziz

driv

es h

is

deliv

ery

truc

k 53

mile

s on

W

edne

sday

. On

Frid

ay, h

e dr

ives

34

mile

s. H

ow m

any

mile

s di

d he

driv

e in

all?

53 +

34

=

8787

mile

s

3

. B

rad’

s fa

mily

pic

ks 2

2 po

unds

of c

herr

ies

at h

ome.

T

hen

they

pic

k 43

pou

nds

at th

e or

char

d. H

ow m

any

poun

ds o

f che

rrie

s di

d th

ey

pick

in a

ll?65

pou

nds

4

. M

r. C

ruz’

s co

ws

gave

48

gallo

ns o

f milk

this

mor

ning

. T

his

afte

rnoo

n, th

ey g

ive

only

34

gallo

ns. H

ow m

any

gallo

ns o

f milk

did

Mr.

Cru

z’s

cow

s gi

ve in

all?

82 g

allo

ns

5

. S

ara

pick

s 24

app

les.

Her

br

othe

r pi

cks

33 a

pple

s.

How

man

y ap

ples

do

they

pi

ck a

ltoge

ther

?57

app

les

The

ir m

om n

eeds

21

appl

es

to b

ake

a pi

e. C

an s

he b

ake

two

pies

? E

xpla

in.

Yes

. To

bak

e 2

pie

s th

eir

mom

need

s 42

app

les

and

57 >

42.

6

. S

andy

wan

ts to

buy

a p

en.

It c

osts

87

cent

s. S

he h

as

7 di

mes

and

26

penn

ies.

C

an s

he b

uy th

e pe

n? P

rove

yo

ur a

nsw

er.

Yes

. San

dy h

as 7

0 +

26

= 9

6

cen

ts a

nd

96

> 8

7.

031_

035_

C05

L6_1

0580

4.in

dd P

age

34 5

/10/

10 5

:29:

59 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..


P rinter P DF

Cop

yrig

ht ©

Mac

mill

an/M

cGra

w-H

ill, a

div

isio

n of

The

McG

raw

-Hill

Com

pani

es, I

nc.



An

swer

s

pygp

Chapter Resources

Gra

de 2

37

C

hapt

er 5

Nam

e

2N

S6

.0,

2N

S2

.05

-7S

kil

ls P

rac

tic

e

Est

imat

e S

ums

Yo

u c

an

es

tim

ate

wh

en

yo

u d

on

’t n

ee

d a

n e

xa

ct

an

sw

er,

or

to c

he

ck

ad

dit

ion

. A

nu

mb

er

lin

e c

an

he

lp y

ou

es

tim

ate

.

3334

3536

4037

3839

3031

3243

4445

4650

4748

4941

42

3

7 is

clo

ser

to

40.

37

→

40

2

8 is

clo

ser

to

30.

+

28

→

+ 3

0

4

0 +

30

is

70.

37 +

28

= 65

65

70

6

5 is

clo

se to

70,

so

the

answ

er is

rea

sona

ble.

Ad

d.

Th

en

ro

un

d e

ac

h a

dd

en

d t

o t

he

ne

are

st

ten

.

Es

tim

ate

th

e s

um

.

1

.

28 →

30

2.

38

→

403

. 3

2 →

30

+

28

→

+ 3

0 +

49

→ +

50

+ 4

1 →

+ 4

0

56

60

87

90

73

70

4

.

48

50

5

.

31

30

6

. 2

2

20

+

33

+

30

+ 3

2

+ 3

0 +

48

+ 5

0

81

80

63

60

70

70

So

lve

. M

ak

e a

n e

sti

ma

te.

7

. H

ugo

has

43 c

ents

. Oliv

e ha

s 48

cen

ts. T

oget

her,

do

they

hav

e en

ough

to b

uy a

box

of r

aisi

ns th

at c

osts

85

cent

s? P

rove

you

r an

swer

.Y

es. 4

0 +

50

= 9

0, 9

0 >

85.

8

. K

endr

a ha

s 27

cen

ts. M

ikey

has

43

cent

s. D

o th

ey h

ave

enou

gh

mon

ey to

buy

a b

ox o

f pop

corn

that

cos

ts 9

0 ce

nts?

Exp

lain

.N

o. 3

0 +

40

= 7

0. 7

0 <

90.

036_

040_

C05

L7_1

0580

4.in

dd P

age

37 5

/10/

10 5

:30:

38 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..

Nam

e

Gra

de 2

36

C

hapt

er 5

2N

S6

.0,

2N

S2

.0

An

es

tim

ate

is

an

an

sw

er

tha

t is

clo

se

to

the

ex

ac

t a

ns

we

r.

If y

ou

do

no

t n

ee

d a

n e

xa

ct

an

sw

er,

yo

u

ca

n e

sti

ma

te.

2

7 →

3

0 T

hink

abo

ut w

hich

ten

+ 1

4 →

+ 1

0 ea

ch a

dden

d is

clo

ser

to.

4

1

4

0

27 is

clo

ser

to

30. 1

4 is

clo

ser

to

10.

27 +

14

is a

bout

40

.

41 is

clo

se to

40,

so

the

answ

er is

rea

sona

ble.

Ro

un

d e

ac

h a

dd

en

d t

o t

he

ne

are

st

ten

.

Es

tim

ate

th

e s

um

.

1

.

45

50

2

.

82

80

3.

76

80

+

14

+

10

+ 1

2 +

10

+

12

+

10

59

60

9

4 90

88

90

4

.

31

30

5

.

38

40

6

. 1

6

20

+

28

+

30

+ 2

8 +

30

+

49

+

50

59

60

6

6 70

65

70

7

.

47

50

8

.

12

10

9

. 8

3

80

+

29

+

30

+ 5

9 +

60

+

16

+

20

76

80

7

1 70

99

1001

09

87

65

43

2

20

1918

1716

1514

1312

1 11

30

2928

2726

2524

2321

40

3938

3736

3534

3331

50

4948

4746

4544

4341

60

5958

5756

5554

5351

70

6968

6766

6564

6361

80

7978

7776

7574

7371

90

8988

8786

8584

8381

10

099

9897

9695

9493

91

22 32 42 52 62 72 82 92

10

98

76

54

32

20

1918

1716

1514

1312

1 11

30

2928

2726

2524

2321

40

3938

3736

3534

3331

50

4948

4746

4544

4341

60

5958

5756

5554

5351

70

6968

6766

6564

6361

80

7978

7776

7574

7371

90

8988

8786

8584

8381

10

099

9897

9695

9493

91

22 32 42 52 62 72 82 92

Re

tea

ch

Est

imat

e S

ums

5-7

036_

040_

C05

L7_1

0580

4.in

dd P

age

36 5

/10/

10 5

:30:

37 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..


P rinter P DF

Copyright ©

Macm

illan/McG

raw-H


cGraw

-Hill C

ompanies, Inc.



pygp

Chapter Resources

Gra

de 2

39

C

hapt

er 5

Nam

e

2N

S6

.0,

2N

S2

.05

-7P

rob

lem

-So

lvin

g P

rac

tic

e

Est

imat

e S

ums

So

lve

. U

se

th

e n

um

be

r li

ne

to

he

lp y

ou

rou

nd

th

e a

dd

en

ds

.

10

20

30

40

50

60

1525

3545

55

1

. S

am’s

pup

py h

as 1

1 sp

ots.

M

o’s

pupp

y ha

s 18

spo

ts.

Abo

ut h

ow m

any

spot

s ar

e th

ere

alto

geth

er?

abou

t 10

+ a

bout

20

= a

bout

30

spo

ts

2

. S

am c

ount

s 16

bird

s on

a

fenc

e an

d 28

bird

s in

a tr

ee.

Abo

ut h

ow m

any

bird

s do

es

Sam

cou

nt?

abou

t 20

+ a

bout

30

= a

bout

50

bird

s

3

. T

he to

y st

ore

has

47 d

olls

ne

ar th

e fr

ont d

oor.

The

re

are

36 d

olls

in th

e ba

ck o

f th

e st

ore.

Abo

ut h

ow m

any

dolls

doe

s th

e st

ore

have

to

sel

l?

abou

t 90

dol

ls

4

. V

ikki

has

34

cans

for

recy

clin

g. M

onic

a ha

s 38

ca

ns fo

r re

cycl

ing.

Abo

ut

how

man

y ca

ns w

ill th

ey

recy

cle

toge

ther

?

abou

t 70

can

s

5

. H

al r

eads

a b

ook

for

fort

y-th

ree

min

utes

. The

n he

rea

ds a

noth

er b

ook

for

fort

y-si

x m

inut

es. A

bout

ho

w m

any

min

utes

doe

s H

al s

pend

rea

ding

?

abou

t 90

min

utes

6

. Ja

ck’s

trai

l mix

has

fort

y-fiv

e pe

anut

s. I

t als

o ha

s fif

ty-t

wo

wal

nuts

. Abo

ut h

ow m

any

nuts

are

in th

e tr

ail m

ix?

abou

t 10

0 n

uts

036_

040_

C05

L7_1

0580

4.in

dd P

age

39 5

/10/

10 5

:30:

40 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..

Nam

e

Gra

de 2

38

C

hapt

er 5

2N

S6

.0,

2N

S2

.0H

om

ew

ork

Pra

cti

ce

Est

imat

e S

ums

Ad

d.

Th

en

ro

un

d e

ac

h a

dd

en

d t

o t

he

ne

are

st

ten

.

Es

tim

ate

th

e s

um

.

1

.

54 →

502

.

34

30

3.

24

20

+

15

→ +

20

+

37

+ 4

0 +

19

+ 2

0

69

70

71

70

43

40

4

.

17

20

5.

58

606

. 3

2

30

+

17

+ 2

0 +

29

+ 3

0 +

41

+ 4

0

34

40

87

90

73

70

7

.

48

50

8.

29

309

. 6

7

70

+

26

+ 3

0 +

14

+ 1

0 +

22

+ 2

0

74

80

43

40

89

90

10

.

16

20

11

.

46

50

12

. 3

7

40

+

67

+ 7

0 +

19

+ 2

0 +

27

+ 3

0

83

90

65

70

64

70

So

lve

.

5-7

13

. T

here

are

34

adul

ts a

t the

S

wim

Clu

b. T

here

are

57

child

ren

at th

e S

wim

Clu

b.

Abo

ut h

ow m

any

peop

le

are

at th

e S

wim

Clu

b?

abou

t 90

peo

ple

14

. T

here

are

24

appl

es in

the

first

bas

ket.

The

re a

re 3

7 ap

ples

in th

e se

cond

bas

ket.

Abo

ut h

ow m

any

appl

es a

re

ther

e to

tal?

abou

t 60

app

les

036_

040_

C05

L7_1

0580

4.in

dd P

age

38 5

/10/

10 5

:30:

39 P

M s

-087

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umes

/108

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0057

7/M

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onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..


P rinter P DF

Cop

yrig

ht ©

Mac

mill

an/M

cGra

w-H

ill, a

div

isio

n of

The

McG

raw

-Hill

Com

pani

es, I

nc.



An

swer

s

pygp

Chapter Resources

Gra

de 2

41

C

hapt

er 5

Nam

e

2A

F1

.1,

2M

R3

.0

Yo

u c

an

us

e a

dd

itio

n s

tra

teg

ies

to

he

lp y

ou

ad

d

thre

e a

dd

en

ds

.

Look

for

doub

les.

Lo

ok fo

r a

ten.

24

37

14

8

11

10

+

32

2

+ 3

31

70

10

8111

Ad

d.

Cir

cle

th

e d

ou

ble

s.

Pu

t a

bo

x o

n t

he

te

ns

.

1

.

14

42

27

29

24

48

24

27

10

42

11

11

+

13

+ 1

2 +

13

+ 2

1 +

26

+ 1

2

51

81

50

92

61

71

2

.

17

23

45

6

10

23

30

26

13

24

57

16

+

13

+ 4

6 +

15

+ 4

0 +

23

+ 3

3

60

95

73

70

90

72

3

.

32

13

55

19

37

21

18

36

20

41

17

17

+

11

+ 4

6 +

15

+ 1

3 +

32

+ 1

3

61

95

90

73

86

51

11 11

Re

tea

ch

Add

Thr

ee T

wo-

Dig

it N

umbe

rs

5-8

1

041_

045_

C05

L8_1

0580

4.in

dd P

age

41 5

/10/

10 5

:33:

27 P

M s

-087

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umes

/108

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0057

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s/C

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..

Nam

e

Gra

de 2

40

C

hapt

er 5

2N

S6

.0,

2N

S2

.05

-7E

nri

ch

Kee

ping

Tab

s

Our

sch

ool i

s co

llect

ing

tabs

from

sod

a ca

ns.

Hea

ther

has

39

tabs

. 30

3940

She

has

abo

ut

40 ta

bs.

Kay

a ha

s 26

tabs

. 20

2630

She

has

abo

ut

30 ta

bs.

Est

imat

e ho

w m

any

tabs

Kay

a an

d H

eath

er

colle

cted

toge

ther

. 70

tab

s

Jack

col

lect

ed 5

3 ta

bs.

5053

60H

e ha

s ab

out

50 ta

bs.

Ken

ny c

olle

cted

19

tabs

. 10

1920

He

has

abou

t 20

tabs

.

Est

imat

e th

e nu

mbe

r of

tabs

Jac

k an

d K

enny

colle

cted

toge

ther

. 70

tab

s

Pau

lo h

as 5

7 ta

bs.

5057

60H

e ha

s ab

out

60 ta

bs.

Mar

ie h

as 1

1 ta

bs.

1011

20S

he h

as a

bout

10

tabs

.

Est

imat

e th

e nu

mbe

r of

tabs

that

Pau

lo a

nd

Mar

ie c

olle

cted

toge

ther

. 70

tab

s

036_

040_

C05

L7_1

0580

4.in

dd P

age

40 5

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:30:

40 P

M s

-087

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umes

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0057

7/M

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_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..


P rinter P DF

Copyright ©

Macm

illan/McG

raw-H


cGraw

-Hill C

ompanies, Inc.



pygp

Chapter Resources

Gra

de 2

43

C

hapt

er 5

Nam

e

2A

F1

.1,

2M

R3

.05

-8H

om

ew

ork

Pra

cti

ce

Add

Thr

ee T

wo-

Dig

it N

umbe

rs

Ad

d.

1

.

26

52

23

71

53

4

5

23

33

14

27

+ 2

4 +

18

+ 4

3 +

13

+ 1

0

95

93

99

98

90

2

.

11

39

47

38

36

1

9

51

36

34

24

+

24

+ 0

+

16

+ 2

0 +

32

54

90

99

92

92

3

.

71

35

44

39

28

1

3

27

22

38

25

+ 1

5 +

15

+ 2

6 +

11

+ 3

5

99

77

92

88

88

So

lve

.11

4

. T

he T

an fa

mily

is g

oing

ap

ple

pick

ing.

Mr.

Tan

pi

cks

24 a

pple

s. M

rs. T

an

pick

s 35

app

les.

The

ir so

n pi

cks

26 a

pple

s. H

ow m

any

appl

es d

o th

e T

ans

pick

?85

app

les

5

. Lo

ok b

ack

over

this

pag

e.

Cho

ose

one

prob

lem

. In

the

spac

e be

low

, writ

e a

stor

y pr

oble

m fo

r th

e su

m.

An

swer

s w

ill

vary

.

041_

045_

C05

L8_1

0580

4.in

dd P

age

43 5

/8/1

0 5

:46:

38 P

M u

-s07

3/V

olum

es/1

08/G

O00

577/

Mat

hCon

nect

s_C

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RM

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Anc

illia

ry/A

pplic

atio

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iles/

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Nam

e

Gra

de 2

42

C

hapt

er 5

2A

F1

.1,

2M

R3

.0S

kil

ls P

rac

tic

e

Add

Thr

ee T

wo-

Dig

it N

umbe

rs

Lo

ok

fo

r tw

o n

um

be

rs i

n t

he

on

es

co

lum

n t

ha

t

ma

ke

a t

en

or

a d

ou

ble

. C

irc

le t

he

m.

Ad

d.

1

.

23

41

35

13

26

1

4

32

18

24

37

+

27

+ 12

+

25

+ 4

+

14

64

85

78

41

77

2

.

8

36

55

11

35

2

0

28

13

63

16

+

12

+ 32

+

14

+ 24

+

34

40

96

82

98

85

3

.

14

52

44

19

24

1

8

20

16

68

3

+

14

+ 11

+

22

+ 12

+

25

46

83

82

99

52

4

.

21

37

14

62

43

1

8

13

45

11

15

+

21

+ 22

+

3

+ 23

+

22

60

72

62

96

80

So

lve

.11

5-8

5

. T

here

are

34

child

ren

in

first

gra

de. T

here

are

27

in

seco

nd g

rade

. The

re a

re 3

1 in

third

gra

de. H

ow m

any

child

ren

are

ther

e in

all?

92 c

hild

ren

6

. 13

stu

dent

s pl

ay th

e be

lls.

16 s

tude

nts

play

the

drum

s.

24 s

tude

nts

play

the

reco

rder

. How

man

y to

tal

stud

ents

pla

y in

stru

men

ts?

53 s

tude

nts

041_

045_

C05

L8_1

0580

4.in

dd P

age

42 5

/5/1

0 1

0:11

:10

PM

elh

i-2/V

olum

es/1

08/G

O00

577/

Mat

hCon

nect

s_C

A_C

RM

_12/

Anc

illia

ry/A

pplic

atio

n_F

iles/

C06

_...


P rinter P DF

Cop

yrig

ht ©

Mac

mill

an/M

cGra

w-H

ill, a

div

isio

n of

The

McG

raw

-Hill

Com

pani

es, I

nc.



An

swer

s

pygp

Chapter Resources

Gra

de 2

45

C

hapt

er 5

Nam

e

2A

F1

.1,

2M

R3

.0E

nri

ch

Bui

ldin

g B

lock

s

5-8

2013

1021

15

Pre

pa

rati

on

: S

ciss

ors

and

glue

are

nee

ded

for

this

act

ivity

.

Fin

d e

ac

h m

iss

ing

ad

de

nd

an

d g

lue

it

in t

he

bo

x.

2010

= 4

0

11

10 2015

= 4

6

4120

= 7

4

21

13 5110

= 8

2

1023

24=

57

20

15

13

2121

21 10

041_

045_

C05

L8_1

0580

4.in

dd P

age

45 5

/10/

10 5

:33:

30 P

M s

-087

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umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..

Nam

e

Gra

de 2

44

C

hapt

er 5

2A

F1

.1,

2M

R3

.05

-8P

rob

lem

-So

lvin

g P

rac

tic

e

Add

Thr

ee T

wo-

Dig

it N

umbe

rs

So

lve

. M

ak

e a

10

or

us

e d

ou

ble

s t

o h

elp

yo

u a

dd

.

1

. T

he z

oo is

ope

n 10

hou

rs o

n F

riday

s, 1

2 ho

urs

on S

atur

days

, an

d 8

hour

s on

Sun

days

. How

man

y ho

urs

is it

ope

n du

ring

thos

e th

ree

days

?30

hou

rs

2

. T

he b

ear

cub

take

s a

15-m

inut

e na

p. L

ater

, she

take

s a

seco

nd n

ap fo

r 23

min

utes

. Her

last

nap

is 2

5 m

inut

es. H

ow

muc

h tim

e do

es th

e cu

b sp

end

napp

ing?

63 m

inut

es

3

. T

hree

mon

keys

wei

gh 5

1 po

unds

. One

wei

ghs

12 p

ound

s an

d an

othe

r w

eigh

s 21

pou

nds.

How

muc

h do

es th

e th

ird m

onke

y w

eigh

?18

pou

nds

4

. D

r. S

hu ta

kes

care

of 2

4 bi

rds.

She

take

s ca

re o

f som

e cu

bs

and

13 p

ups.

She

take

s ca

re o

f 55

anim

als

in a

ll. H

ow m

any

wer

e cu

bs?

18 c

ubs

Chi

ldre

n

Adu

lts

Frid

ayS

atur

day

Sun

day

1522

19

815

13

Vis

itor

Nu

mb

er

of

Zo

o V

isit

ors

5

. H

ow m

any

child

ren

visi

ted

the

zoo

in a

ll?56

chi

ldre

n

6

. H

ow m

any

adul

ts v

isite

d th

e zo

o in

all?

36 a

dults

041_

045_

C05

L8_1

0580

4.in

dd P

age

44 5

/10/

10 5

:33:

29 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..


P rinter P DF

Copyright ©

Macm

illan/McG

raw-H


cGraw

-Hill C

ompanies, Inc.



pygp

Chapter Resources

Gra

de 2

47

C

hapt

er 5

Nam

e

2M

R1

.1,

2A

F1

.25

-9R

ete

ac

h (

2)

Pro

blem

-Sol

ving

Inv

estig

atio

n: C

hoos

e a

Str

ateg

y

Pro

ble

m-S

olv

ing

Str

ate

gie

s

• D

raw

a P

ictu

re

• W

ork

Bac

kwar

d

• W

rite

a N

umbe

r S

ente

nce

So

lve

.

1

. T

he s

choo

l has

thre

e bu

ses.

34

child

ren

ride

on o

ne b

us.

27 c

hild

ren

ride

on th

e se

cond

bus

. 33

child

ren

ride

on th

e th

ird b

us. H

ow m

any

child

ren

ride

in a

ll?94

chi

ldre

n

2

. Je

sse’

s bu

s ta

kes

16 m

inut

es to

get

to s

choo

l. M

igue

l’s b

us

take

s 17

mor

e m

inut

es to

get

to s

choo

l. Jo

’s b

us ta

kes

20 m

ore

min

utes

to g

et to

sch

ool.

How

man

y m

inut

es d

oes

it ta

ke J

o’s

bus

to g

et to

sch

ool?

53 m

inut

es

Chi

ldre

n

Adu

lts

Frid

ayS

atur

day

Sun

day

2143

19

1851

28

Vis

itor

Nu

mb

er

of

Vis

ito

rs t

o t

he

Art

Ex

hib

it

3

. O

n w

hat d

ay d

id th

e ar

t exh

ibit

have

the

mos

t vis

itors

? T

ell

how

you

kno

w.

Satu

rday

; Fr

iday

had

39

visi

ts, S

atu

rday

had

94,

Sun

day

had

47.

94

is g

reat

er t

han

39

or 4

7.

4

. W

ho v

isite

d th

e ar

t exh

ibit

mor

e, a

dults

or

child

ren?

Tel

l how

yo

u kn

ow.

adul

ts; t

otal

chi

ldre

n =

83;

tot

al a

dult

s =

97,

97

> 8

3

046_

050_

C05

L9_1

0580

4.in

dd P

age

47 5

/5/1

0 1

0:11

:40

PM

elh

i-2/V

olum

es/1

08/G

O00

577/

Mat

hCon

nect

s_C

A_C

RM

_12/

Anc

illia

ry/A

pplic

atio

n_F

iles/

C06

_...

Nam

e

Gra

de 2

46

C

hapt

er 5

2M

R1

.1,

2A

F1

.2

On

a m

ath

test

, Edi

e sc

ores

10

poin

ts m

ore

than

Jac

k. J

ack’

s sc

ore

is 5

poi

nts

mor

e th

an D

ee’s

. Dee

sco

res

73 p

oint

s. H

ow

man

y po

ints

doe

s E

die

scor

e?

Re

tea

ch

(1

)

Pro

blem

-Sol

ving

Inv

estig

atio

n: C

hoos

e a

Str

ateg

y

5-9

Wh

at

do

I k

no

w?

Edi

e sc

ores

10

mor

e po

ints

than

Jac

k.

Jack

sco

res

5 m

ore

poin

ts th

an D

ee.

Dee

sco

res

73 p

oint

s.

Wh

at

do

I n

ee

d t

o f

ind

?

How

man

y po

ints

E

die

sco

res.

Un

de

rsta

nd

Ste

p 1

Pla

n

Ste

p 2

So

lve

Ste

p 3

Wri

te a

nu

mb

er

se

nte

nc

e.

Jack

sco

res

5 m

ore

than

Dee

.

Edi

e sc

ores

10

mor

e po

ints

than

Jac

k.

Edi

e’s

scor

e is

10

+

5 +

73

.10

+

5 +

73

=

88

Edi

e sc

ored

88

poi

nts.

Ho

w w

ill

I fi

nd

ho

w m

an

y?

I ca

n w

rite

a n

umbe

r se

nten

ce.

Ch

ec

k

Ste

p 4

Did

I w

rite

a nu

mbe

r se

nten

ce?

yes

Doe

s m

y an

swer

mak

e se

nse?

ye

s

046_

050_

C05

L9_1

0580

4.in

dd P

age

46 5

/10/

10 5

:34:

00 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..


P rinter P DF

Cop

yrig

ht ©

Mac

mill

an/M

cGra

w-H

ill, a

div

isio

n of

The

McG

raw

-Hill

Com

pani

es, I

nc.

An

swer

s



pygp

Chapter Resources

Gra

de 2

49

C

hapt

er 5

Nam

e

2M

R1

.1,

2A

F1

.25

-9H

om

ew

ork

Pra

cti

ce

Pro

blem

-Sol

ving

Inv

estig

atio

n: C

hoos

e a

Str

ateg

y

Pro

ble

m-S

olv

ing

Str

ate

gie

s

• D

raw

a P

ictu

re

• W

ork

Bac

kwar

d

• W

rite

a N

umbe

r S

ente

nce

So

lve

.

1

. M

adge

, Sie

rra,

and

Tyr

a ba

ked

pies

for

the

stat

e fa

ir. M

adge

’s

pie

did

not c

ome

in s

econ

d. T

he ju

dges

like

Sie

rra’

s pi

e be

tter

than

Mad

ge’s

. Sie

rra

cam

e in

sec

ond.

Who

se p

ie w

on fi

rst

plac

e?Ty

ra’s

pie

won

firs

t pla

ce.

2

. M

r. G

reen

judg

ed 2

4 co

ws.

He

judg

ed tw

ice

as m

any

hors

es

as c

ows.

How

man

y co

ws

and

hors

es d

id h

e ju

dge

in a

ll?72

cow

s an

d ho

rses

3

. T

he fa

ir ha

s a

pum

pkin

con

test

. The

big

gest

pum

pkin

wei

ghs

37 p

ound

s. T

he s

econ

d-pl

ace

pum

pkin

wei

ghs

36 p

ound

s.

A 2

6-po

und

pum

pkin

win

s th

ird. H

ow m

uch

do th

e th

ree

pum

pkin

s w

eigh

in a

ll?99

pou

nds

4

. T

hirt

y pe

ople

wat

ch th

e do

g sh

ow o

n W

edne

sday

. On

Thu

rsda

y, fo

ur m

ore

peop

le w

atch

the

dogs

than

on

Wed

nesd

ay. O

n F

riday

, the

num

ber

of p

eopl

e w

ho w

atch

the

dogs

is th

e sa

me

as th

e nu

mbe

r w

ho w

atch

on

Thu

rsda

y. H

ow

man

y pe

ople

wat

ch th

e do

g sh

ow o

n F

riday

?34

peo

ple

046_

050_

C05

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0580

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age

49 5

/10/

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02 P

M s

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umes

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0057

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licat

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File

s/C

05_.

..

Nam

e

Gra

de 2

48

C

hapt

er 5

2M

R1

.1,

2A

F1

.2S

kil

ls P

rac

tic

e

Pro

blem

-Sol

ving

Inv

estig

atio

n: C

hoos

e a

Str

ateg

y

Pro

ble

m-S

olv

ing

Str

ate

gie

s

• D

raw

a P

ictu

re

• W

ork

Bac

kwar

d

• W

rite

a N

umbe

r S

ente

nce

5-9

So

lve

.

1

. M

r. G

arci

a’s

clas

s bu

ys ti

cket

s fo

r th

e ba

sket

ball

gam

e. T

hey

buy

27 c

hild

ren’

s tic

kets

and

35

adul

t tic

kets

. The

team

als

o gi

ves

them

30

free

tick

ets.

How

man

y tic

kets

doe

s th

e cl

ass

have

in a

ll?92

tick

ets

2

. A

t the

gam

e, 1

8 ba

nd m

embe

rs w

ear

red,

22

band

mem

bers

w

ear

blue

, and

31

wea

r w

hite

. How

man

y ba

nd m

embe

rs a

re

ther

e in

all?

71 b

and

mem

bers

3

. A

t the

sna

ck s

tand

, Ton

y se

lls 3

4 ba

gs o

f pop

corn

. He

sells

25

drin

ks a

nd 3

2 ho

t dog

s. H

ow m

any

snac

ks d

oes

he s

ell i

n al

l?91

sna

cks

4

. C

hery

l sco

res

28 p

oint

s. J

ia s

core

s 12

poi

nts

mor

e th

an C

hery

l do

es. B

rook

e sc

ores

18

mor

e po

ints

than

Jia

. How

man

y po

ints

doe

s B

rook

e sc

ore?

58 p

oint

s

046_

050_

C05

L9_1

0580

4.in

dd P

age

48 5

/5/1

0 1

0:11

:47

PM

elh

i-2/V

olum

es/1

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hCon

nect

s_C

A_C

RM

_12/

Anc

illia

ry/A

pplic

atio

n_F

iles/

C06

_...


P rinter P DF

Copyright ©

Macm

illan/McG

raw-H


cGraw

-Hill C

ompanies, Inc.



Nam

e

Gra

de 2

50

C

hapt

er 5

2M

R1

.1,

2A

F1

.25

-9E

nri

ch

Add

ing

Age

s

1

. T

om is

3 y

ears

old

er th

an h

is s

iste

r P

am.

The

ir ag

es a

dd u

p to

13.

How

old

is T

om?

8

How

old

is P

am?

5

2

. G

ene

and

Mad

elin

e ar

e tw

ins.

The

ir ag

es a

dd u

p to

12.

How

old

are

the

twin

s?

6

How

old

will

the

twin

s be

in 3

yea

rs?

9

3

. E

rica

is 5

yea

rs o

lder

than

Sim

a.

The

ir ag

es a

dd u

p to

25.

How

old

is E

rica?

15

How

old

is S

ima?

10

4

. Ja

ke is

10

year

s yo

unge

r th

an h

is c

ousi

n M

atth

ew.

The

ir ag

es a

dd u

p to

30.

How

old

is J

ake?

10

How

old

is M

atth

ew?

20

046_

050_

C05

L9_1

0580

4.in

dd P

age

50 5

/10/

10 5

:34:

02 P

M s

-087

/Vol

umes

/108

/GO

0057

7/M

athC

onne

cts_

CA

_CR

M_1

0/A

ncill

iary

/App

licat

ion_

File

s/C

05_.

..


P rinter P DF

Cop

yrig

ht ©

Mac

mill

an/M

cGra

w-H

ill, a

div

isio

n of

The

McG

raw

-Hill

Com

pani

es, I

nc.

An

swer

s


Nam

e

Gra

de 2

52

C

hapt

er 5

Dia

gn

os

tic

Te

st

Are

you

rea

dy fo

r ch

apte

r 5?

Wri

te e

ac

h n

um

be

r tw

o w

ay

s.

5

1

.

18 o

nes

1 te

n 8

one

s

2

.

25 o

nes

2 te

ns

5 o

nes

Ad

d.

3

.

9

4.

8

5

. 7

+

6

+

8

+

3

1

5

16

10

6

. 3

+ 1

+ 5

=

9

7.

2 +

2 +

3 =

7

Ro

un

d t

o t

he

ne

are

st

ten

.

8

. 37

rou

nds

to

40

9.

72 r

ound

s to

70

10

. T

here

are

3 w

hite

duc

ks a

nd 2

bro

wn

duck

s in

a p

ond.

F

our

mor

e br

own

duck

s jo

in th

em. H

ow m

any

duck

s ar

e in

the

pond

now

? 9

duc

ks

051_

074_

C05

EM

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804.

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e 52

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5:3

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PM

s-0

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hCon

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s_C

A_C

RM

_10/

Anc

illia

ry/A

pplic

atio

n_F

iles/

C05

_...

pygp

Chapter Resources

Gra

de 2

53

C

hapt

er 5

Nam

e

Ch

ap

ter

Pre

tes

t

Fin

d e

ac

h s

um

. [L

esso

n 5.

1]

1

.

40

50

20+

30

+ 4

0 +

60

70

90

80

Us

e t

he

nu

mb

er

lin

e t

o c

ou

nt

on

. [L

esso

n 5.

2]

010

2030

4050

6070

8090

100

2

.

37

51

41+

22

+ 16

+

3759

67

78

Fin

d t

he

su

m.

[Les

sons

5.4

, 5.5

]

3

. 2

7

4.

47

5

. 64

+

7

+

9

+

7

3

4

5

6

7

1

Fil

l in

th

e c

irc

le f

or

yo

ur

an

sw

er.

[Les

son

5.6]

6

. 34

+ 5

8 =

7

. 13

+ 6

9 =

82

92

712

93

54

812

72

82

5

051_

074_

C05

EM

_105

804.

indd

Pag

e 53

5/1

0/10

5:3

4:37

PM

s-0

87/V

olum

es/1

08/G

O00

577/

Mat

hCon

nect

s_C

A_C

RM

_10/

Anc

illia

ry/A

pplic

atio

n_F

iles/

C05

_...

Answers (Diagnostic Test, Chapter Pretest)


P rinter P DF

Copyright ©

Macm

illan/McG

raw-H


cGraw

-Hill C

ompanies, Inc.


pygp

Chapter Resources

Gra

de 2

55

C

hapt

er 5

Nam

e

Vo

ca

bu

lary

Te

st

Us

e t

he

wo

rds

in

th

e w

ord

ba

nk

. W

rite

th

e c

orr

ec

t

wo

rd i

n t

he

bla

nk

. estim

ate

regr

oup

add

roun

d ad

dend

s su

m

1

. T

he a

nsw

er to

an

addi

tion

prob

lem

is c

alle

d th

e su

m.

2

. A

(n)

esti

mat

e is

a n

umbe

r cl

ose

to a

n ex

act a

mou

nt.

3

. T

o ch

ange

a n

umbe

r so

it is

eas

ier

to w

ork

with

is to

ro

un

d th

e nu

mbe

r.

4

. W

hen

you

add

, you

join

toge

ther

set

s to

find

the

tota

l.

5

. T

o ta

ke a

part

a n

umbe

r an

d w

rite

it a

new

way

is to

re

grou

p.

6

. A

ny n

umbe

rs b

eing

add

ed a

re c

alle

d ad

den

ds

.

Cir

cle

th

e c

orr

ec

t a

ns

we

r.

7

. re

gro

up

a n

umbe

r12

+ 3

= 3

+ 1

2 24

= 2

tens

and

52

+ 2

9 is

abo

ut

4

ones

50

+ 3

0 =

80

8

. e

sti

ma

te

12 +

3 =

3

24 =

2 te

ns a

nd

52 +

29

is a

bout

4 on

es

50 +

30

= 8

0

9

. ro

un

d 3

333

30

40

5

051_

074_

C05

EM

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e 55

5/1

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5:3

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PM

s-0

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es/1

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O00

577/

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hCon

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s_C

A_C

RM

_10/

Anc

illia

ry/A

pplic

atio

n_F

iles/

C05

_...

Nam

e

Gra

de 2

54

C

hapt

er 5

Mid

-Ch

ap

ter

Te

st

Pre

pa

rati

on

: B

ase-

ten

cube

s an

d un

it cu

bes

are

need

ed fo

r th

is

asse

ssm

ent.

Ad

d.

Us

e a

n a

dd

itio

n f

ac

t to

he

lp y

ou

. [L

esso

n 5.

1]

1

. 5

tens

+ 3

tens

=

8 te

ns

2.

4 te

ns +

1 te

n =

5

tens

50 +

30

=

80

40

+ 1

0 =

50

Co

un

t o

n t

o a

dd

. W

rite

th

e s

um

. [L

esso

n 5.

2]

3

.

54

4.

1

5

.

12

6.

82

+

3

+ 2

6 +

6

+

557

27

18

87

7

. 13

+ 3

0 =

43

8

. 55

+ 4

0 =

95

9

. 6

+ 6

0 =

66

1

0.

46 +

10

=

56

Fin

d t

he

su

m.

Us

e

an

d

. [L

esso

n 5.

4]

Ad

dH

ow

ma

ny

te

ns

?

Ho

w m

an

y o

ne

s?

Do

yo

u n

ee

d

to r

eg

rou

p?

Wri

te t

he

su

m.

11

.43

+ 6

4 te

ns9

one

sye

s

no40

+ 9

= 49

12

.24

+ 7

2 te

ns11

one

sye

s

no24

+ 7

= 31

Fil

l in

th

e c

irc

le f

or

yo

ur

an

sw

er.

13

. W

hat i

s fo

rty-

eigh

t plu

s ei

ghte

en?

[Les

son

5.4]

56

66

76

88

5

051_

074_

C05

EM

_105

804.

indd

Pag

e 54

5/1

0/10

5:3

4:37

PM

s-0

87/V

olum

es/1

08/G

O00

577/

Mat

hCon

nect

s_C

A_C

RM

_10/

Anc

illia

ry/A

pplic

atio

n_F

iles/

C05

_...

Answers (Mid-Chapter Test, Vocabulary Test)


P rinter P DF

Cop

yrig

ht ©

Mac

mill

an/M

cGra

w-H

ill, a

div

isio

n of

The

McG

raw

-Hill

Com

pani

es, I

nc.

An

swer

s


pygp

Chapter Resources

Gra

de 2

57

C

hapt

er 5

Nam

e

Ora

l A

ss

es

sm

en

t R

es

po

ns

es

1

. B

: 41

+ 8

= 4

9

2

. A

: 20

+ 4

0 =

60

3

. D

; 34

+ 5

8 =

92;

An

swer

s w

ill

vary

.

4

. E:

34

+ 3

6 +

28

= 9

8

5

. A

: 20

+ 4

0 =

60;

B: 4

1 +

8 =

49;

C: 2

5 +

41

= 6

6

6

.

ones

tens

+

34 8

5

291

5

051_

074_

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EM

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e 57

5/1

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4:38

PM

s-0

87/V

olum

es/1

08/G

O00

577/

Mat

hCon

nect

s_C

A_C

RM

_10/

Anc

illia

ry/A

pplic

atio

n_F

iles/

C05

_...

pygp

Chapter Resources

Gra

de 2

59

C

hapt

er 5

Nam

e

Sh

ow

yo

ur

mo

de

l h

ere

.

1

.

2

. St

ud

ent

exp

lain

s

rou

nd

ing

up

an

d d

own

to

esti

mat

e. 3

0 +

10

= 4

0.

3

.

4

. D

raw

you

r nu

mbe

r lin

e he

re.

Lis

ten

ing

As

se

ss

me

nt

Re

sp

on

se

Sh

ee

t5

3040

5060

70

++

+=

+=

=

051_

074_

C05

EM

_105

804.

indd

Pag

e59

5/14

/10

10:2

0:38

PM

elhi

-4/V

olum

es/1

08/G

O00

577/

Mat

hCon

nect

s_C

A_C

RM

_10/

Anc

illia

ry/A

pplic

atio

n_F

iles/

C05

_...

Answers (Oral & Listening Assessment Response Sheets)

A01_A33_C05AN_105804.indd Page A27 5/14/10 10:29:29 PM elhi-4A01_A33_C05AN_105804.indd Page A27 5/14/10 10:29:29 PM elhi-4 /Volumes/108/GO00577/MathConnects_CA_CRM_10/Ancilliary/Application_Files/C05_.../Volumes/108/GO00577/MathConnects_CA_CRM_10/Ancilliary/Application_Files/C05_...


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illan/McG

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Chapter Resources

Gra

de 2

63

C

hapt

er 5

Nam

e

Ch

ap

ter

Te

st,

Fo

rm 1

(c

ontin

ued)

Sun

ny B

rook

Far

m

Pin

e V

alle

y F

arm

Cow

sP

igs

Lam

bs

2218

14

3312

17

An

ima

ls a

t 4

H F

arm

s

5

6

. E

stim

ate

the

num

ber

of

pigs

ther

e ar

e, in

all,

at b

oth

farm

s. [

Less

on 5

.7]

10

gues

s

20

con

cep

tual

err

or

30

corr

ect

70

gu

ess

7

. H

ow m

any

anim

als,

in a

ll,

are

ther

e at

Sun

ny B

rook

F

arm

? [L

esso

n 5.

8]

34

gues

s

44

con

cep

tual

err

or

54

corr

ect

64

pro

ced

ura

l er

ror

Chi

cken

s

Duc

ks

Gee

se

Bir

ds

at

Su

ns

et

Rid

ge

Fa

rms

8

. H

ow m

any

bird

s, in

all,

ar

e th

ere

at S

unse

t Rid

ge

Far

ms?

[Le

sson

5.8

]

50

gues

s

61

con

cep

tual

err

or

64

pro

ced

ura

l er

ror

74

corr

ect

STO

P

051_

074_

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e 63

5/1

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5:3

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hCon

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illia

ry/A

pplic

atio

n_F

iles/

C05

_...

Nam

e

Gra

de 2

62

C

hapt

er 5

Ch

ap

ter

Te

st,

Fo

rm 1

1

. 30

+ 2

0 =

[L

esso

n 5.

1]

60

pro

ced

ura

l er

ror

50

corr

ect

40

gues

s

5

con

cep

tual

err

or

5

3

. 23

+ 9

=

[L

esso

n 5.

4, 5

.5]

2 te

ns 8

one

s gu

ess

2 te

ns 9

one

s co

nce

ptu

al

erro

r

3

tens

2 o

nes

corr

ect

3 te

ns 1

2 on

es p

roce

du

ral

erro

rp

roce

du

ral

erro

r

2

. W

hich

is a

noth

er w

ay to

w

rite

32 +

7?

[Les

son

5.4,

5.5

]

3 te

ns 9

one

s co

rrec

t

3 te

ns 7

one

s p

roce

du

ral

erro

r

3

tens

2 o

nes

pro

ced

ura

l er

ror

2 te

ns 1

4 on

es g

ues

s

4

. H

ow w

ould

you

reg

roup

4

tens

and

18

ones

? [L

esso

n 5.

4]

3 te

ns 8

one

s gu

ess

4 te

ns 8

one

s p

roce

du

ral

erro

r

5

tens

18

ones

5 te

ns 8

one

s co

rrec

t

pro

ced

ura

l er

ror

pro

ced

ura

l er

ror

Re

ad

ea

ch

qu

es

tio

n c

are

full

y.

Fil

l in

th

e c

irc

le f

or

the

co

rre

ct

an

sw

er.

5

. 43

+ 3

9 =

[

Less

ons

5.4,

5.6

]

7 te

ns 2

one

s =

72

pro

ced

ura

l er

ror

7 te

ns 1

one

= 7

1

gu

ess

8 te

ns 2

one

s =

82

cor

rect

8 te

ns 1

2 on

es =

92

con

cep

tual

err

or

GO

ON

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pplic

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Answers (Chapter Test Form I)


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yrig

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Mac

mill

an/M

cGra

w-H

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isio

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-Hill

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pani

es, I

nc.

An

swer

s


Nam

e

Gra

de 2

64

C

hapt

er 5

Ch

ap

ter

Te

st,

Fo

rm 2

A

Re

ad

ea

ch

qu

es

tio

n c

are

full

y.

Fil

l in

th

e c

irc

le f

or

the

co

rre

ct

an

sw

er.

5

2

. W

hich

is a

noth

er w

ay to

w

rite

43 +

5?

[Les

sons

5.4

, 5.5

]

3 te

ns 5

one

s gu

ess

4 te

ns 8

one

s co

rrec

t

5 te

ns 8

one

s p

roce

du

ral

erro

r

6

tens

5 o

nes

gues

s

1

. 40

+ 3

0 =

[

Less

on 5

.1]

70

corr

ect

30

con

cep

tual

err

or

40

con

cep

tual

err

or

7

pro

ced

ura

l er

ror

4

. H

ow w

ould

you

regr

oup

6 te

ns

and

16 o

nes?

[Les

son

5.4]

7 te

ns 6

one

s co

rrec

t

5 te

ns 2

one

s gu

ess

4 te

ns 6

one

s gu

ess

6 te

ns 6

one

s gu

ess

3

. 32

+ 6

=

[Le

sson

s 5.

4, 5

.5]

3 te

ns 6

one

s p

roce

du

ral

erro

r

3

tens

2 o

nes

gues

s

4 te

ns 8

one

s p

roce

du

ral

erro

r

3

tens

8 o

nes

corr

ect

6.

49 +

38

=

[Le

sson

5.4

]

97

con

cep

tual

err

or

87

corr

ect

83

gues

s

77

gues

s

GO

ON

5

. W

hich

add

ition

fact

is

show

n? [L

esso

n 5.

6]

+=

28

+ 4

6 =

74

corr

ect

20

+ 4

0 =

60

gues

s

28

+ 4

6 =

54

pro

ced

ura

l er

ror

28

+ 4

6 =

64

pro

ced

ura

l er

ror

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C05

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pygp

Chapter Resources

Gra

de 2

65

C

hapt

er 5

Nam

e

Ch

ap

ter

Te

st,

Fo

rm 2

A

(con

tinue

d)

Ros

es

Tul

ips

Red

Pin

kW

hite

3217

24

3312

17

Fe

rn’s

Flo

we

r F

arm

5

7

. E

stim

ate

the

tota

l num

ber o

f ro

ses

at F

ern’

s Fl

ower

Far

m.

[Les

son

5.7]

50

con

cep

tual

err

or

60

con

cep

tual

err

or

70

corr

ect

80

gues

s

9

. H

ow m

any

pets

do

the

seco

nd g

rade

rs h

ave

in a

ll?

[Les

son

5.8]

45

gues

s

58

pro

ced

ura

l er

ror

68

corr

ect

78

pro

ced

ura

l er

ror

8

. H

ow m

any

tulip

s, in

all,

ar

e th

ere

at F

ern’

s F

low

er

Far

m?

[Les

son

5.6]

72

pro

ced

ura

l er

ror

62

corr

ect

52

gues

s

32

gues

s

10

. H

ow m

any

bird

s an

d ca

ts

com

bine

d ar

e th

e fa

vorit

e pe

ts?

[Les

son

5.8]

23

con

cep

tual

err

or

32

corr

ect

42

pro

ced

ura

l er

ror

9

con

cep

tual

err

orSTO

P

Cat

s

Dog

s

Bird

s

Fa

vo

rite

Pe

ts o

f S

ec

on

d G

rad

ers

051_

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s-0

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Mat

hCon

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s_C

A_C

RM

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Anc

illia

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pplic

atio

n_F

iles/

C05

_...

Answers (Chapter Test Form 2A)


P rinter P DF

Copyright ©

Macm

illan/McG

raw-H


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pygp

Chapter Resources

Gra

de 2

67

C

hapt

er 5

Nam

e 5

Ch

ap

ter

Te

st,

Fo

rm 2

B

(con

tinue

d)

7

. N

ine

dogs

are

in a

par

k.

Six

teen

dog

s ar

e ou

tsid

e th

e pa

rk. A

dog

wal

ker

brin

gs 1

2 m

ore.

How

man

y do

gs a

re

ther

e in

all?

[Les

son

5.8]

25

gues

s

28

pro

ced

ura

l er

ror

37

corr

ect

8

. U

se

.

F

ind

16 +

27.

[Les

son

5.6]

33

con

cep

tual

err

or

53

pro

ced

ura

l er

ror

43

corr

ect

9

. E

stim

ate

how

man

y ch

ildre

n vo

ted

for r

ed o

r blu

e. [L

esso

n 5.

7]

abo

ut 2

0 ch

ildre

n gu

ess

abo

ut 3

4 ch

ildre

n

abo

ut 3

0 ch

ildre

n co

rrec

t

con

cep

tual

er

ror

con

cep

tual

er

ror

10

. In

all,

how

man

y ch

ildre

n vo

ted?

[Les

son

5.8]

44

corr

ect

34

con

cep

tual

err

or

24

con

cep

tual

err

or

STO

P

Red

Blu

e

Gre

enFa

vo

rite

Co

lor

Su

rve

y

Pre

pa

rati

on

: C

ount

ers

are

need

ed fo

r th

is a

sses

smen

t.

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atio

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iles/

C05

_...

Nam

e

Gra

de 2

66

C

hapt

er 5

Ch

ap

ter

Te

st,

Fo

rm 2

B

Re

ad

ea

ch

qu

es

tio

n.

Fil

l in

th

e c

irc

le f

or

the

co

rre

ct

an

sw

er.

5

1

. A

dd. 2

0 +

10

=

[L

esso

n 5.

1]

20

con

cep

tual

err

or

10

con

cep

tual

err

or

30

corr

ect

2

. A

dd. 5

0 +

40

=

[L

esso

n 5.

1]

90

corr

ect

40

con

cep

tual

err

or

50

con

cep

tual

err

or

3

. 12

+ 6

=

[Le

sson

5.5

]

12

gues

s

16

gues

s

18

corr

ect

4

. 16

+ 9

=

[Le

sson

5.5

]

19

gues

s

15

con

cep

tual

err

or

25

corr

ect

5

. U

se th

e nu

mbe

r lin

e. F

ind

16 +

12.

[Les

son

5.2,

5.6

]

2829

3021

2019

2223

2425

2627

1815

1617

28

corr

ect

22

gues

s

18

pro

ced

ura

l er

ror

6

. 28

+ 3

9 =

[L

esso

n 5.

6]

5 te

ns 7

one

s =

57

pro

ced

ura

l er

ror

6 te

ns 8

one

s =

68

con

cep

tual

err

or

6 te

ns 7

one

s =

67

corr

ect

GO

ON

051_

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5/1

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5:3

4:49

PM

s-0

87/V

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es/1

08/G

O00

577/

Mat

hCon

nect

s_C

A_C

RM

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Anc

illia

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pplic

atio

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iles/

C05

_...

Answers (Chapter Test Form 2B)


P rinter P DF

Cop

yrig

ht ©

Mac

mill

an/M

cGra

w-H

ill, a

div

isio

n of

The

McG

raw

-Hill

Com

pani

es, I

nc.

An

swer

s


Nam

e

Gra

de 2

68

C

hapt

er 5

Ch

ap

ter

Te

st,

Fo

rm 2

C

Re

ad

ea

ch

qu

es

tio

n c

are

full

y.

Wri

te y

ou

r a

ns

we

r o

n t

he

lin

e.

Fin

d t

he

su

m.

[Les

sons

5.1

, 5.5

, 5.6

]

1

.

40

2

.

44

3

. 5

2

+ 3

0

+

3

+

33

70

47

85

5

7

.

ones

tens

+

45 7 2

71 2

GO

ON

Fin

d t

he

su

m.

6

. [L

esso

ns 5

.4, 5

.5, 5

.6, 5

.8]

ones

tens

+

57 9 6

61

4

.

+

=43

W

rite

the

sum

two

diffe

rent

w

ays.

[Les

sons

5.4

, 5.6

]

4 te

ns

3 o

nes

43

5

.

W

rite

the

sum

two

diffe

rent

w

ays.

[Les

sons

5.4

, 5.6

]

4 te

ns

13 o

nes

53

++=

53=

53

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PM

s-0

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hCon

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A_C

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pplic

atio

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iles/

C05

_...

pygp

Chapter Resources

Gra

de 2

69

C

hapt

er 5

Nam

e

Ch

ap

ter

Te

st,

Fo

rm 2

C

(con

tinue

d)

8

. [L

esso

ns 5

.4, 5

.8]

9

. [L

esso

n 5.

4, 5

.8]

ones

tens

+

23 7 5

91 245

ones

tens

+

34 3 8

9241

Ros

es

Tul

ips

Red

Pin

kW

hite

3824

30

2812

24

Dai

sies

030

25

Flo

we

rs s

old

on

Mo

the

r’s

Da

y

10

. H

ow m

any

rose

s w

ere

sold

in a

ll? M

ake

an e

stim

ate.

[Les

son

5.7]

abou

t 90

ros

es

11

. H

ow m

any

tota

l tul

ips

wer

e so

ld fo

r M

othe

r’s D

ay?

[Les

son

5.8]

64 tu

lips

12

. M

ax b

uys

7 pa

lm tr

ees.

He

buys

10

mor

e ca

ctus

pla

nts

than

he

buys

pal

m tr

ees.

He

buys

12

mor

e fe

rns

than

he

buys

cac

tus.

W

rite

a nu

mbe

r se

nten

ce to

sho

w h

ow m

any

fern

s M

ax b

uys.

[L

esso

n 5.

3]

7

+

10

+

12

=

29 fe

rns

STO

P

5

051_

074_

C05

EM

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Pag

e 69

5/1

0/10

5:3

4:54

PM

s-0

87/V

olum

es/1

08/G

O00

577/

Mat

hCon

nect

s_C

A_C

RM

_10/

Anc

illia

ry/A

pplic

atio

n_F

iles/

C05

_...

Answers (Chapter Test Form 2C)


P rinter P DF

Copyright ©

Macm

illan/McG

raw-H


cGraw

-Hill C

ompanies, Inc.


pygp

Chapter Resources

Gra

de 2

71

C

hapt

er 5

Nam

e

Ch

ap

ter

Te

st,

Fo

rm 2

D

(con

tinue

d)5

8

. [L

esso

ns 5

.4, 5

.8]

9

. [L

esso

ns 5

.4, 5

.8]

ones

tens

+

13 1 9

6145

ones

tens

+

24 6 1

71 221

10

. E

llen

bake

s 5

mor

e pi

es th

an J

ane.

Jan

e ba

kes

7 m

ore

pies

th

an C

elia

. Cel

ia b

akes

6 p

ies.

Com

plet

e th

e nu

mbe

r se

nten

ce

to s

how

how

man

y pi

es J

ane

bake

s. [L

esso

n 5.

3]

7 +

6

=

13 p

ies

C

ompl

ete

the

num

ber

sent

ence

to s

how

ho

w m

any

pies

Elle

n ba

kes.

5 +

13

=

18 p

ies

STO

P

051_

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hCon

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s_C

A_C

RM

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Anc

illia

ry/A

pplic

atio

n_F

iles/

C05

_...

Nam

e

Gra

de 2

70

C

hapt

er 5

Ch

ap

ter

Te

st,

Fo

rm 2

D

Re

ad

ea

ch

qu

es

tio

n c

are

full

y.

Wri

te y

ou

r a

ns

we

r o

n t

he

lin

e.

1

. [L

esso

n 5.

1]

2.

[Les

son

5.5]

3

. [Le

sson

5.6

]

50

22

50

+

20

+ 3

+ 3

3

70

25

83

5

7

. [L

esso

ns 5

.4, 5

.6]

ones

tens

+

25 6 1

51 2

GO

ON

Ad

d.

6

. [L

esso

ns 5

.4, 5

.5]

ones

tens

+

38 4 2

41

4

.

=35

W

rite

the

num

ber

two

diffe

rent

way

s. [L

esso

n 5.

4]

2 te

ns

15 o

nes

35

5

.

= +

41

W

rite

the

sum

two

diffe

rent

w

ays.

[Les

sons

5.4

, 5.6

]

3 te

ns

11 o

nes

41

051_

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Pag

e 70

5/1

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5:3

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PM

s-0

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es/1

08/G

O00

577/

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hCon

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s_C

A_C

RM

_10/

Anc

illia

ry/A

pplic

atio

n_F

iles/

C05

_...

Answers (Chapter Test Form 2D)


P rinter P DF

An

swer

s

Grade 2 A33 Chapter5

Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

Nam

e

Gra

de 2

72

C

hapt

er 5

Cu

mu

lati

ve S

tan

da

rdiz

ed T

est

Pra

ctic

e

Rea

d e

ach

qu

esti

on

. Fill

in th

e ci

rcle

for

the

corr

ect a

nsw

er.

5

1. 9

+ 9

=

[Les

son

2.4]

9

con

cep

tual

err

or

0

con

cep

tual

err

or

18

corr

ect

19

pro

ced

ura

l er

ror

2. 7

− 0

=

[Les

son

3.2]

0

con

cep

tual

err

or

6

pro

ced

ura

l er

ror

7

corr

ect

5

gues

s

3. 7

+ 5

+ 2

=

[Les

son

2.7]

15

pro

ced

ura

l er

ror

14

corr

ect

0

con

cep

tual

err

or

16

pro

ced

ura

l er

ror

4. 8

− 3

=

[Les

son

3.1]

11

con

cep

tual

err

or

5

corr

ect

6

pro

ced

ura

l er

ror

8

con

cep

tual

err

or

5. 8

+ 5

=

[Les

son

2.2]

13

corr

ect

3

con

cep

tual

err

or

8

con

cep

tual

err

or

12

pro

ced

ura

l er

ror

6. [

Leso

n 5.

8]

ones

tens

+1

8 222

4

74

54

108

64

corr

ect

GO

ON

pro

ced

ura

l er

ror

pro

ced

ura

l er

ror

pro

ced

ura

l er

ror

pro

ced

ura

l er

ror

con

cep

tual

er

ror

con

cep

tual

er

ror

Chapter Resources

Gra

de 2

73

Cha

pter

5

Nam

e

Cu

mu

lati

ve S

tan

da

rdiz

ed T

est

Pra

ctic

e(c

ontin

ued)

Rea

d e

ach

qu

esti

on

ca

refu

lly.

Wri

te y

ou

r a

nsw

er o

n th

e lin

e.

7.U

se

,, o

r =

to c

ompl

ete

the

sent

ence

. [Le

sson

1.7

]

26 p

ound

s 2

1 po

unds

8.W

hat i

s th

e ra

nge

of th

e da

ta?

[Les

son

4.6]

9.K

ay m

ade

thre

e m

ore

pain

tings

than

Ale

x. A

lex

mad

e fo

ur

mor

e pa

intin

gs th

an B

ert.

Ber

t mad

e si

x pa

intin

gs. H

ow m

any

pain

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Chapter 5 Resource Masters - MHSchool€¦ · Chapter 5 Test, Form 1 ... The Chapter 5 Resource Masters includes the core materials needed for Chapter 5. ... Cumulative Standardized