Multiplying Dividing Decimal Review

What is our rule for multiplying decimals?

• Count the decimal places of the factors, move that many from the right in your answer

• Drop it straight down

• Forget the decimal

• Estimate

Desi uses the grid shown to solve the decimal mulitplication problem 0.3 x 0.4. What is the product?

• 12

• 1.4

• .12

• .14

19 x 0.8

• 152

• 15.2

• 142

• 14.2

Find the quotient of 9.45 divided by 5

• 1.89

• 189

• 18.9

• 20

4(0.03)

• 12

• 1.2

• 0.12

• 0.012

• 5.25 x 3 = 15.75

• 5.25 x 7 = 36.75

The weight of a sand in a large bag is 63.4 pounds. The sandbag is being divided equally into 20 small bags. What is the weight in pounds of the sand in each small bag?

• 3.114 lb

• 3.107 lb

• 31.7 lb

• 3.17 lb

Which equation is represented by the model?

What is the area of David’s garden?

• 2.45 square meters

• 2.8 square meters

• 4.3 square meters

• 8.6 square meters

5.2 X 4.6

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