Question

Write an equivalent expression to show the relationship of multiplication and addition.

1. 10 + 10 + 10
2. 4 + 4 + 4 + 4 + 4 + 4 + 4
3. 8 × 2
4. 3 × 9
5. 6m
6. d + d + d + d + d

Answer 1

Multiplication is really just repeated addition.

Answers:

1. 10 x 3 or 10(3)
2. 4 x 7 or 4(7)
3. 8 + 8
4. 3 + 3 + 3 + 3 +3 + 3 + 3 + 3 + 3
5. m + m + m + m + m + m
6. 5d