Chapter 6 Review

Estimate

100

Estimate:  3 x 0.57

Example: 3x1=3

200

Estimate:  0.82 x 0.69

Example:  1 x 1= 1

300

Estimate:  15.8 x 0.28

Example: 16 x 0 = 0

400

Estimate: 112.5 ÷ 9

Example: 110 ÷ 10= 11

500

Estimate:  489.1 ÷ 7.3

Example: 490 ÷ 7= 70

Multiplying Decimals

100

Multiply:  6 x 0.92

5.52

200

Multiply:   0.93 x 0.74

0.6882

300

Multiply:  14.8 x 0.83

12.284

400

Multiply:  0.78 x 9.1

7.098

500

Multiply: 2.43 x 3.432

8.33976

Dividing Decimals

100

Divide: 43.5 ÷ 3

14.5

200

Divide: 0.79 ÷ 0.4

1.975

300

Divide: 212.8 ÷ 3.8

56

400

Divide: 1.8 ÷ 0.08

22.5

500

Divide: 12.71 ÷ 6.2

2.05

Powers of 10

100

72.3 ÷ 100

0.723

200

86.34 x 10

863.4

300

56.2 x 100

5,620

400

126.384 ÷ 100

1.26384

500

102.6 ÷ 10²

1.026

Word Problems

100

Aleena's house is 0.4 mile from the school. The distance from her house to the grocery store is 10 times the distance from the school. What is the distance from Aleena's house to the grocery store?

4 miles

200

Akshay buys 2 fish tanks at the pet store. Each tank holds 9.7 liters of water. How many liters of water will he need to fill both tanks?

19.4 liters

300

Reagan is buying a pack of gum that costs $1.50. The sales tax is found by multiplying the cost of the gum by 0.06. What is the sales tax on the gum?

$0.09

400

Nixon has $62. He wants to buy some movies at the store. If each movie costs 15.50, how many movies can Louise buy?

4 movies

500

Sophia paints a rectangular mural on the wall. The area of the mural is 128.52 square feet. The mural is 12.6 feet wide. What is the height of the mural?

10.2 feet