Thursday, September 8th • Please write down homework and

Complete warm-up

Evaluate when h=12

1. 7h 2. h-5

WARM UP

Joke of the Day

Why did the computer get glasses?

To improve its web sight

Reteach/Retest

Reteach

Monday, September 12th

Retest

Tuesday,September 13th

Algebra

Candy Toss ReviewRaise your hand when you have found the answer!

Don’t blurt out or you will be disqualified

Evaluate when t=8

t + 9

Evaluate when v=3

10-v

Is this an arithmetic sequence and why?

211,209,207,205……

Write in standard

4

Write in exponential

3 x 5 x 3 x 3 x 5 x 5 x 5

Homework Answersp.2

Let’s try some together!!!!

Table of Contents Date: 9/8

Section: 2-2

Title: Translating words to algebra

Pages: 3-4

On your whiteboards….. divide your boards in four parts in upper left: think of addition

words in upper right: think of subtraction

wordsIn lower left: think of multiplication

wordsIn lower right: think of division

words

37 + 28

• 28 added to 37• 37 plus 28• the sum of 37 and 28• 28 more than 37

• 28 added to x• x plus 28• the sum of x and 28•28 more than x

x + 28

+Operation

Numerical Expression

Words

Algebraic Expression

Words

Adding

• 12 subtracted from k• 12 minus k• the difference of k and 12• take away 12 from k

k — 12

Operation

Numerical Expression

Words

Algebraic Expression

Words

90 — 12

• 12 subtracted from 90• 90 minus 12• the difference of 90 and 12• 12 less than 90• take away 12 from 90

subtracting

• 8 times w• w multiplied by 8• the product of 8 and w• 8 groups of of w

8 w or (8)(w) or 8w

Operation

Numerical Expression

Words

Algebraic Expression

Words

8 48 or 8 48

• 8 times 48• 48 multiplied by 8• the product of 8 and 48

or (8)(48) or

8(48) or (8)48

Multiplying

• n divided by 3• the quotient of n and 3

n 3 or

Operation

Numerical Expression

Words

Algebraic Expression

Words

327 3 or

• 327 divided by 3• the quotient of 327 and 3

327

3

n

3

Dividing

Write each phrase as a numerical or algebraic expression.

A. 987 minus 12987 12

B. x times 4545 • x or 45x

You Try!

c. 42 less than 7979 42

d. y divided by 22y 22 or y

22

WARNING

“Less than”Is a tricky monster

Whenever you see “less than” the first number will go second in your

expressionExample: 4 less than 9

9-4

Write two phrases for

each expression.

• 16 divided by b

B. (75)(32)• 75 times 32

• the quotient of 16 and b

• the product of 75 and 32

a. 16

b

Action Operation

Put together or combine

Find how much more or less

Put together groups of equal parts

Separate into equal groups

Add

Subtract

Multiply

Divide

Word Problems

Lake Superior is the largest lake in North America. Let a stand for the area in square miles of Lake Superior. Lake Erie has an area of 9,910 square miles. Write an expression to show how much larger Lake Superior is than Lake Erie.

To find how much larger, subtract the area of Lake Erie from the area of Lake Superior.

a – 9,910

Lake Superior is a – 9,910 square miles larger than Lake Erie.

Let p represent the number of colored pencils in a box. If there are 26 boxes

on the shelf, write an algebraic expression to represent the total number of pencils on the shelf.To put together 26 equal groups of p,

multiply 26 times p.

26p, or 26 • p

There are 26p pencils on the shelf.