NannyPoo40
NannyPoo40
23-09-2015
Mathematics
contestada
Using compatible numbers to estimate 329+64
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lovelycelv
lovelycelv
23-09-2015
330+60. You see how the larger number rounded up because the last digit is a 9 so 5 & up round up. 64 you round down because the last digit is under 5 so round down. :)
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