Decimals Models

Your friend uses the model below and says 0.12 ÷ 0.04 = 0.03. Is your friend correct? Explain.

• yes; There are 3 groups of 0.04 in 0.12.

• no; There are 4 groups of 0.03 in 0.12.

• no; There are 3 groups of 0.04 in 0.12.

• yes; There are 4 groups of 0.03 in 0.12.

What equation does this model represent?

• 0.4 ÷ 0.05 = 0.8

• 0.4 ÷ 0.05 = 8

• 0.4 ÷ 0.05 = 80

• 0.4 ÷ 0.05 = 0.08

Use the model to complete the equation below. 0.08 ÷ _____ = 4

• 2

• 0.2

• 0.02

• 20

What is the equation represented in the model?

• 1.4 ÷ 0.07 = 20

• 20 ÷ 0.07 = 1.4

• 1.4 ÷ 0.07 = 2

• 1.4 ÷ 0.7 = 20

The shaded portion of the model represents the decimal-

• 1.55

• 1.6

• 1.56

• 1.65

Which equation matches the model?

• 2 x 0.3 = 0.6

• 3 x 0.2 = 0.6

• 2 x 3 = 0.6

• 3 x 2 = 6

How many groups are in this model? 

• 1

• 2

• 3

• 4

What is the equation for this model?

• 17 x 3 = 51

• 0.17 x 0.3 = 0.051

• 0.17 x 3 = 0.51

• 17 x 0.3 = 0.51

How many  are in each group? 

• 1.5

• 15

• 0.15

• 1.5