dinosaurio dinosaurio

23-08-2015
Mathematics

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Rounding numbers to estimate the sum 256+321

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Аноним Аноним

23-08-2015

[tex]256\approx260\\\\321\approx320\\\\therefore\\\\256+321\approx260+320=\boxed{580}[/tex]

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Linnnny Linnnny

24-08-2015

add those to numbers together. you will get 577. if the last number is over 5 you round up. to 580.

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