Area Model to Multiply Decimals

4.3 Use models to multiply decimals by whole numbers

​Make sure you have your notebook, pencil, and colored pencils ready to take notes today.

​Watch the videos to see how to multiply a decimal by a whole number using models

​Work the following problems in your notebook.

​1. 4 x .2

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2. 4 x .07

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3. 3 x .3

Multiple Choice

Representations

What multiplication expression does the model show?

• 5 × 0.4

• 5 × 0.6

• 16 × 0.05

• 5 × 0.16

Fill in the Blanks

Use the decimal model to find the product.

4 × 0.13 =

Multiple Choice

Which equation matches the model?

• 5 × 0.18 = 0.9

• 5 × 0.18 = 90

• 5 × 0.18 = 9.0

• 5 × 0.18 = 0.09

Multiple Choice

Display

Which equation matches the model?

• 4 × 0.31 = 1.24

• 4 × 0.31 = 1.51

• 4 × 0.39 = 1.24

• 4 × 0.39 = 1.56

Fill in the Blanks

Use the decimal model to find the product.

3 × 0.21 =