Mathematics
ValeneMartinsen19
2015-11-05 18:21:39
Use mental math to evaluate the expression 6(31)+6(4)-6(15)
ANSWERS
KamalaGentleman
2015-11-05 23:02:14

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

AmerAli
2015-11-05 23:03:29

Okay this is how i did it,  6(31) + 6(4)  -  6(15)  186  +  24   -  90         = 120

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