Topic 1 Review

1-1

100

Find 8.1 + 2.53.

10.63

200

Find 2.4 × 0.87.

2.088

300

Find 46.91 - 28.7.

18.21

400

Find 12 × 0.08.

0.96

500

The Bright-O-Shampoo Factory includes 1.078 ounces of vanilla oil in a 6.35 ounce bottle of shampoo. How much of the bottle of shampoo is NOT vanilla oil?

5.272 ounces

1-2

100

Find 2593 ÷ 21. Record remainder.

123 R10

200

Find 968 ÷ 38. Record remainder.

25 R18

300

Find 232 ÷ 40. Record remainder as a decimal.

5.8

400

Find 137.5 ÷ 5. Record remainder as a decimal.

27.5

500

You and a friend are paid $38.25 for doing yard work. You worked 2.5 hours and your friend worked 2 hours. You split the money according to the amount of time each of you worked. How much is your share of the money?

$21.25

1-3

100

7/8 × 1/2

7/16

200

2/5 × 1/12

1/30

300

1/3 × 3/7

1/7

400

3 1/5 × 2/3

2 2/15

500

The world's smallest gecko is 3/4 inch long. An adult male Western Banded Gecko is 7 1/3 times as long. How long is an adult male Western Banded Gecko?

5 1/2 in.

1-4/1-5

100

1/2 ÷ 1/16

8

200

1/4 ÷ 1/12

3

300

2/7 ÷ 1/2

4/7

400

3/10 ÷ 3/5

1/2

500

The area of a rectangular painting is 1/6 square yard. The width is 2/3 yard. What is the length of the painting? Use the formula A=l×w.

1/4 yard

1-6

100

4 1/3 ÷ 3 1/4

3 1/4

200

16 ÷ 2 2/3

6

300

2 2/3 ÷ 8

1/3

400

2 1/3 ÷ 1 1/3

1 3/4

500

The owner of an aquatic store used 17 1/2 gallons of water to fill an aquarium. He put 5 5/6 gallons of water in each aquarium. How many aquariums did he fill?

3 aquariums