Questions

1)

Answer the following questions about the previous activity:

(a) How many hundredths squares are filled with both colors?

(b) What is the answer to the problem?

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2)

Write a multiplication sentence for the model shown below.

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3)

Write a multiplication sentence for the model shown below.

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4)

Solve. Check for a reasonable answer through estimation. 0.7 × 0.8

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5)

Solve. Check for a reasonable answer through estimation. 0.14 × 0.23

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6)

Solve. Check for a reasonable answer through estimation. 0.29 × 0.5

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7)

Solve. Check for a reasonable answer through estimation. 78.5 × 3.95

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8)

Solve. Check for a reasonable answer through estimation. 3.48 × 39

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9)

Solve. Check for a reasonable answer through estimation. 6.89 × 2.3

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10)

Select the decimal that is not equivalent to 7.9.

A) 7.90

B) 7.900

C) 7.09

D) 7.9000

E) 7.9

11)

Simplify 8.30.

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12)

Find the products. Simplify the decimal. 6.43 × 10

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13)

Find the products. Simplify the decimal. 6.43 × 100

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14)

Find the products. Simplify the decimal. 6.43 × 1000

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15)

For problems #12 through #14, study the problems and the answers. Write a shortcut rule for placing the decimal point when multiplying by 10, 100 or 1000.

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16)

Solve.

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17)

Solve.

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18)

Solve.

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19)

Solve.

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20)

Select the inverse of 6.

A) 6/1

B) 1/6

C) 0

D) 1

E) 6

21)

Select the mixed fraction that is NOT equivalent to 8.

A) Choice A

B) Choice B

C) Choice C

D) Choice D

E) Choice E

22)

Select the number that is closest to zero in value.

A) 0.06

B) 0.026

C) 0.206

D) 0.260

E) 0.6

23)

Chris and Joni ran a 50 meter race. The wind was blowing against them at 1.8 kilometers per hour. Chris finished with a time of 6.5 seconds. Joni’s time was 0.43 seconds faster. What was Joni’s time for the race? Label answer correctly.

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24)

Study the pattern in the figure. How many blocks are needed to build a wall 10 blocks high? Explain how you figured the answer.

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25)

Refer to the pattern in the previous problem to answer the following questions:

(a) If 68 blocks were available; a wall could be built that is how many blocks high?

(b) How many blocks would be left over?

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