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  • 17-08-2016
  • Mathematics
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use mental math to evaluate the expression 6(31)+6(4)-6(15)

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garydesir1
garydesir1 garydesir1
  • 17-08-2016
Hi

Mental math ? Ok let me explain

6(31) + 6(4) -6(15)
You need to do the parenthesis first
186 + 24 - 90
You do addition first before subtract
210 - 90
= 120

I hope that's help !
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