Grade2 1st Q MATH-Answer Key

8/14/2019 Grade2 1st Q MATH-Answer Key

1/16

GRADE2_1st Q_MATH

I. STANDARD AND EXPANDED FORMS OF A NUMBER

A. DIRECTIONS: Write the following numbers in STANDARD form.

____3027_____ 1. three thousand, twenty-seven

____8072_____ 2. 8 thousands + 2 ones + 7 tens

____9653_____ 3. 50 + 600 + 3 + 9000

____8903_____ 4. 8 thousand, 9 hundred, 3

B. DIRECTIONS: Complete the following:

5. 4 378 = 4000 + _300____ + 70 + ___8____

6. 8 442 = _8000_____ + 400 + ___40____ + 2

7. 6 207 = 6000 + ____200___ + ____0____ + 7

C. DIRECTIONS: Write the numbers in expanded form.

8. 58 = ______50_+_8________________________________

9. 259 = ______200_+_50_+_9__________________________

10. 5 196 = ___5000 + 100 + 90 + 6______________________

II. PLACE VALUE AND VALUE

A. DIRECTIONS: Give the place value of the digit 8.

1. 7185 ____tens_____________

2. 8074 ____thousands________

3. 4847 ____hundreds_________

4. 9738 ____ones_____________


2/16

B. DIRECTIONS: Answer the following questions:

5. Give the place value of the underlined digit.

a. 3 569 b. 4 968 c. 297 d. 1 781

TensHundreds Hundreds Thousands

6. Give the value of the underlined digit

a. 51 b. 4 968 c. 624 d. 5 321

1900 20 5 000

7. In the numbersix thousand four hundred five,

a. What is the number above in standard form? ___ 6405_____

b. What is the place value of the digit 0? _____tens________

c. What is the digit in the ones place? _____5___________

d. What is the value of the digit in the thousands place? ____6 000___

e. How do you expand the number above using place value? _6thousands + 4 hundreds + 5 ones

f. What is the place value of the digit 6? _____thousands___

g. What is the digit in the hundreds place? ___4_____________

8. In the numbereight hundred ninety six,

h. What is the digit in the ones place? ____6____________

i. What is the digit in the hundreds place? __8______________

j. What is the place value of the digit 9? ____tens_________

k. What is the place value of the digit 8? _____hundreds____

l. What is the value of the digit 6? _____ones________

2


3/16

III. ROMAN NUMERALS

A. DIRECTIONS: Express these Roman numerals as Hindu-Arabicnumerals.

1. XIII = ___13____

2. XVII = ___17____

3. XXXI = ___31____

4. XLIV = ___44____

5. LIX = ___59____

6. XIII = ___13____

7. LXII = ___62____

8. XXXI = ___31____

9. XXIV = __24_____

10.XXIX = __29_____

11.XXXVI = ____36___

12.LV = ____55___

B. DIRECTIONS: Change these Hindu-Arabic numerals to Romannumerals.1. 37 = __XXXVII_

2. 42 = __XLII___

3. 63 = __LXIII__

4. 24 = __XXIV___

5. 46 = __XLVI___

6. 39 = _XXXIX___

7. 70 = __LXX____

8. 66 = __LXVI___

9. 58 = __LXVIII_

10.15 = ___XV____

C. DIRECTIONS: Change the underlined numeral to a Roman or Hindu-Arabic numeral

1. ___36______ Three dozen eggs is the same as XXXVI eggs.

2. _XCV_____ Our class has collected95 kilograms of old

newspapers.

3. _XXXVIII_____ It takes about38 weeks for a baby to developwithin a mothers womb.

4. __52____ There wereLII participants in the math quiz bee.

5. ___77____ More thanLXXVII families were affected by the flood.

3


4/16

IV. HOW MANY 1s, 10s AND 100s IN A GIVEN NUMBER

DIRECTIONS: Fill in the blanks.

Number No. of 100s No. of 10s No. of 1s

1. 68 X 6 68

2. 589 5 58 5893. 280 2 28 280

4. 38 X 3 38

5. 902 9 90 902

6. 400 4 40 400

7. 781 7 78 781

8. 90 X 9 90

9. 790 7 79 790

10. 506 5 50 506

V. ROUNDING TO THE NEAREST TENS

DIRECTIONS: Round to the nearest tens

1. 67 ___70___ 4. 33 ___30___

2. 32 ___30___ 5. 82 ___60__

3. 89 ____90__

DIRECTIONS: Encircle the number to which the given number is closer.

1. 68 60 or 70 4. 661 600 or 700

2. 113 100 or 200 5. 4500 4000 or 5000

3. 248 240 or 250 6. 3210 3000 or 4000

C. DIRECTIONS. Round off each number to the given place value

1. 27 (tens) 30

2. 86 (tens) 90

3. 131 (hundreds) 100

4. 412 (tens) 400

5. 390 (hundreds) 400

4


5/16

V. COMPARING AND ORDERING NUMBERS

A. DIRECTIONS: Write >,

100 + 8

5) 112>

One hundred, 2 ones

6) 3 042>

Three thousand + 4 ones + 2 tens

7) One thousand, 8 ones, 9 tens=

1 098

8) Six hundreds, 5 tens, 8 ones

Documents

Grade2 1st Q MATH-Answer Key