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