MATH SOLVE

4 months ago

Q:
# Thomas calculates 9Γ7 by thinking avout it as 70-7=63. Explain thomas' strategy.

Accepted Solution

A:

10 x 7 = 70

1 x 7 = 7

9 x 7 = 70 - 7

9 x 7 = 63

1 x 7 = 7

9 x 7 = 70 - 7

9 x 7 = 63