ethan04 ethan04
  • 20-09-2016
  • Mathematics
contestada

Sun-Yi estimated 270+146and got 300.is her estimate reasonable explain

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snow44
snow44 snow44
  • 20-09-2016
No. Round 146 to 150 and add both 270 and 150. It's 420. So 400 would be more reasonable. 300 is not reasonable because it ain't close.
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