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

asked Nov 27, 2016 90.5k views

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

Rmahajan answered Nov 29, 2016

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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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