SOLUTION: Use the distributive property to simplify: 98*7. Instructor shows answer as 700-14=686. How? Why?

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Question 11119: Use the distributive property to simplify: 98*7.
Instructor shows answer as 700-14=686.
How? Why?

Answer by askmemath(368)   (Show Source): You can put this solution on YOUR website!
I can write 98 = 100-2
So instead of 98x7 I can now write (100-2)x7
100x7 - 2x7 (Distributive)
700-14 = 686

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