to be able to do the problems 5(10+4) mentally, zack does 50+20 instead of 5(14).
zack is using witch of the following properties?
associative
commutative
inverse
distributive
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0
Answer:
70
Step-by-step explanation:
5(10+4) is property which is a(b+c)=axb+axc
so answer will be
5(10+4) = 5×10 + 5x4 = 50 + 20 = 70
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