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

Algebra ->  Distributive-associative-commutative-properties -> SOLUTION: Use the distributive property to simplify: 98*7. Instructor shows answer as 700-14=686. How? Why?      Log On


   

Question 11119: Use the distributive property to simplify: 98*7.
Instructor shows answer as 700-14=686.
How? Why?
Answer by askmemath(368) About Me  (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