Multiply Decimals Using Bar Models

Which equation does this model represent?

• 0.80 x 0.33 = 0.24

• 0.8 x 0.24 = 0.3

• 0.3 x 0.8 = 0.24

• 0.24 x 0.3 = 0.8

• The product is 80.

• The product is 15.

• The product is 0.15.

• The quotient is 0.15.

• 0.2 x 0.04 = 0.2

• 0.2 x 0.2 = 0.4

• 0.2 x 0.2 = 4

• 0.2 x 0.2 = 0.04

Based on this model, what is the product of 0.4 and 0.8?

• 32

• 0.032

• 0.32

• 84

• F

• G

• H

• J

• 
• 
• 
• 

Which equation can be represented by the shaded parts of the model?

• 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

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

Which model represents 1.8 x 4?

• 
• 
• 
• 

• F
• G
• H
• J