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Mathematics
Makhi Lynch
5 September, 08:23
Using compatible numbers to estimate 83+34
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Jaylyn Forbes
5 September, 10:06
0
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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