Modeling Multiplying Decimals

Which expression does the model show?

• 0.6 x 7

• 0.6 x 0.7

• 7 x 6

• 6 x 0.7

Which product does the model show?

• 45

• 4.5

• 0.45

• 0.045

Which expression is represented by the model?

• 3 x 1.3

• 13 x 1.3

• 1.3 x 10

• 13 x 1

Which equation is represented by the model?

• $12.55 ÷ 5 = $3.51

• $12.55 ÷ 5 = $2.61

• $12.55 ÷ 5 = $2.51

• $12.55 ÷ 6 = $2.51

Which equation matches the model?

• 0.4 x 0.3 = 0.12

• 12 x 0.3 = 3.6

• 3 x 4 = 12

• 3 x .12 = 0.36

The price of a gallon of gasoline is shown. How much does it cost to fill an empty 12.5-gallon gas tank?

The operation I will use to find the total cost to fill an empty tank is ​ (a)   .

The total cost to fill up the tank is ​ (b)   .

• addition

• multiplication

• $29.86

• $10.99

• $25.48

• $26.76

Which model represents 3 x 1.8?

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A coffee grinder can grind 1.4 pounds of coffee in one minute. Which model below best represents the number of pounds of coffee it can grind in 0.2 minutes?

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Tags

5.3.D

What is the equation for the decimal multiplication model?

• 25 x 8 =200

• 0.25 x 8 = 0.20

• 0.8 x 25 = 2.0

• 8 x 0.25 = 2.00

Show 0.2 x 0.1