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yschaparroc yschaparroc
  • 22-09-2014
  • Mathematics
Answered

Using compatible numbers to estimate 83+34

Verified Answer :

akamoneygirl
akamoneygirl akamoneygirl
  • 26-09-2014

80 + 30
then add
80 + 30=110
then add the numbers you left out
3+ 4 = 7
and you get 117

or you can round up
90 + 40
90 + 40=130
then you subtract the numbers you added on
90 - 83 = 7
40 - 34 = 6
then you add those and subtract from 130 and you get 11Answer here

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