Use mental math to evaluate the expression 6(31)+6(4)-6(15)
2 answers:
Okay this is how i did it,
6(31) + 6(4) - 6(15)
186 + 24 - 90
= 120
Remember distributive property
a(b+c)=ab+ac
we can ervers it
6(31)+6(4)-6(15)=6(31)+6(4)+6(-15)=6(31+4-15)=6(20)=120
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