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kria kria
  • 31-08-2015
  • Mathematics
Answered

use rounding or compatible numbers to estimate sum of 87 +34

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rydian123 rydian123
  • 31-08-2015

if u round 87 its 90 and when you round 34 it is 30 then you add 90 and 30 and you get 120...
i hope this helped....
:) .........:)

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Benheb18
Benheb18 Benheb18
  • 31-08-2015

87 rounded is 90 and 34 rounded is 30 so 90+30=120

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