grapes1
grapes1 grapes1
  • 27-09-2015
  • Mathematics
contestada

Explain how you would estimate to subtract 189 from 643

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deeznuts7 deeznuts7
  • 27-09-2015
well frist you cant do 189 from 643. u have to do 643 - 189.and that well be 743
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kayleigh1 kayleigh1
  • 27-09-2015
643 will round to 600 and 189 will round to 299 so 600 - 200 = 400
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