roberson48
roberson48 roberson48
  • 14-09-2018
  • Mathematics
contestada

what is the best estimate 81×409

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brianistolitt brianistolitt
  • 14-09-2018
409 because 1 times nine is 9 and 0 times 8 is 0
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serathibe serathibe
  • 14-09-2018

The best estimate is 33,100

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