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Note from the author:

Test Prep

1

1 pt

Mrs. Phelps bought 4 boxes of crayons at the store to share with her students. Each box contained a total of 64 crayons.

Part A

What is the total number of crayon Mrs. Phelps bought at the store? Explain your answer using mathematical expressions and/or words.

2

1 pt

Part B

Mrs. Phelps wants to give each of her students an equal number of the crayons she bought. There are 32 students in Mrs. Phelps’ class. How many crayons should each student get? How do you know you are correct?

3

1 pt

Part C

How many more boxes of crayons does Mrs. Phelps need if she wants each of her students to get 12 crayons? Explain your answer using mathematical expressions and/or words.

4

1 pt

Isaiah is thinking of the number 9.52 in his head. Decide whether each of these has the same value as 9.52 and explain your reasoning.

1. Nine and fifty-two tenths

2. 9 + 0.5 + 0.02

3. 9 ones + 5 tenths + 2 hundredths

4. (9×1)+(5×110)+(2×1100)

5. 952 tenths

6. 952 hundredths

5

1 pt

Kipton has a digital scale. He puts a marshmallow on the scale and it reads 7.2 grams. How much would you expect 10 marshmallows to weigh? Why? Explain your answer.

6

1 pt

Kipton takes the marshmallows off the scale. He then puts on 10 jellybeans and then scale reads 12.0 grams. How much would you expect 1 jellybean to weigh? Why? Explain your answer.

7

1 pt

Kipton then takes off the jellybeans and puts on 10 brand-new pink erasers. The scale reads 312.4 grams. How much would you expect 1,000 pink erasers to weigh? Why? Explain your answer.

8

1 pt

Explain why 0.4 x 10 = 4

9

1 pt

Explain why 3.4 x 10 = 34

10

1 pt

Carolyn created a square-shaped poster. The length of each side of this poster is 1½ feet. What is the area of this poster, in square feet?

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