keyris keyris
  • 15-05-2015
  • Mathematics
contestada

rounding or compatible numbers to estimate the sum of 87+34=

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ChillinFool
ChillinFool ChillinFool
  • 15-05-2015
we are simplifying this so they are easier to add in your head.

87+33 is easier math to do in your head

so our new estimated number would be 120 
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rosemajor rosemajor
  • 15-05-2015
If you are just trying to estimate count 8 and 3 together but the answer is 121
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