Multiply Decimals and Whole Numbers Using Models

Multiply Decimals

*1 decimal place.

*tenths place.

3 x 0.3 =

• 9

• 0.9

• 0.09

• 0.009

Multiply Decimals

*2 decimal places.

*hundredths place.

3 x 0.03 =

• 9

• 0.9

• 0.09

• 0.009

Multiply Decimals

2 x 0.4 =

• 8

• 0.8

• 0.08

• 0.008

Multiply Decimals

2 x 0.04 =

• 8

• 0.8

• 0.08

• 0.008

Use the decimal model to find the product.

4 × 0.13 =

Use the decimal model to find the product.

3 × 0.21 =

What is 0.7 x 0.4?

• 28

• 2.8

• 0.28

• 0.028

The hundredths model in the figure is shaded to represent the multiplying of two numbers.

• 80 x 40 = 3,200

• 0.08 x 0.04 = 0.32

• 0.80 x 0.40 = 0.32

• 0.08 x 0.04 = 0.032

Use the decimal model to find the product.

4 × 0.07 =

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