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  • 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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