Practice with the help of **Spectrum Math Grade 5 Answer Key Chapter 3 Lesson 3.7 Multiplying Decimals Using Models** regularly and improve your accuracy in solving questions.

## Spectrum Math Grade 5 Chapter 3 Lesson 3.7 Multiplying Decimals Using Models Answers Key

**Use models to solve the problems below.**

Question 1.

0.3 × 0.7 = _____

Answer:

Explanation:

– If we have two decimal values to be inserted in the grid, we can shade the row with one decimal and the column with the other decimal.

– The result of the multiplication of a decimal by a decimal is represented in the grid by the overlapping shaded region. The grid below represents the multiplication of 0.3 x 0.7 = 0.21

– As we can see, 21 grids overlap. So, the result will be 21/100 = 0.21

Question 2.

0.7 × 0.2 = _____

Answer:

Explanation:

– If we have two decimal values to be inserted in the grid, we can shade the row with one decimal and the column with the other decimal.

– The result of the multiplication of a decimal by a decimal is represented in the grid by the overlapping shaded region. The grid below represents the multiplication of 0.7 x 0.2 = 0.14

– As we can see, 14 grids overlap. So, the result will be 14/100 = 0.14

Question 3.

0.4 × 0.8 = _____

Answer:

Explanation:

– If we have two decimal values to be inserted in the grid, we can shade the row with one decimal and the column with the other decimal.

– The result of the multiplication of a decimal by a decimal is represented in the grid by the overlapping shaded region. The grid below represents the multiplication of 0.4 x 0.8 = 0.32

– As we can see, 32 grids overlap. So, the result will be 32/100 = 0.32