15-05-2015
Mathematics

contestada

rounding 547+326=to estimate the sum?

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ChillinFool ChillinFool

15-05-2015

we can round up to make easier numbers add in our head

550+330=880

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Daniël24 Daniël24

15-05-2015

5+3=8
4+2=6
7+6=13

= 86 and 13 = 873

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