Dividing a Decimal by a Decimal with Models

True or False

2 divided by 0.2 = 10

• True

• False

0.21 divided by 7 =?

• 0.3

• 0.03

• 3.0

• 0.04

Amaya solved a division problem using a grid. What were her dividend and divisor? What is their quotient?

• 0.8 divided by 4 = 0.2

• 8 divided by 0.4 = 2

• 0.08 divided by 0.04 = 0.02

• 0.8 divided by 2 = 0.4

Jordan had to solve a division problem. Which equation best describes the model?

• 3.6 divided by 3 = 1.2

• 36 divided by 3 = 12

• 0.36 divided by 3 = 0.12

• 0.36 divided by 3 = 0.012

The model represents the decimal value 0.21. Which of the following describes a way to use the model to solve the division problem 0.21 ÷ 0.07?

• Count how many groups of seven squares are in the shaded area.

• Count how many unshaded squares are in the first seven rows of the model.

• Calculate the fraction of squares that are shaded in the first seven rows of the model.

Which equation is represented by the model?

• 12 ÷ 4 = 0.3

• 1.2 ÷ 0.4 = 0.3

• 1.2 ÷ 4 = 0.3

• 1.2 ÷ 0.3 = 4

Which equation is represented by the model?

• 2.5 ÷ 5 = 0.5

• 0.25 ÷ 5 = 0.5

• 2.5 ÷ 0.5 = 0.5

• 2.5 ÷ 0.5 = 5

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

• F

• G

• H

• J