2-5Example 1

Find the product of 3 and 7 by using repeated addition. Then write the multiplication fact and its commutative fact.

1. What is the first factor?

3

What is the second factor?

7

2-5Example 1

Find the product of 3 and 7 by using repeated addition. Then write the multiplication fact and its commutative fact.

2. Write an equation as repeated addition. Use the first factor as the number being added and the second factor as the number of times you add the number.

3 + 3 + 3 + 3 + 3 +3 + 3 = 21

2-5Example 1

Find the product of 3 and 7 by using repeated addition. Then write the multiplication fact and its commutative fact.

3. Write the multiplication fact.

3 × 7 = 21

2-5Example 1

Find the product of 3 and 7 by using repeated addition. Then write the multiplication fact and its commutative fact.

4. Write the commutative fact.

7 × 3 = 21