Munmun Munmun
  • 14-10-2014
  • Mathematics
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Estimate the difference 100-21

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Midnightthewolfie
Midnightthewolfie Midnightthewolfie
  • 14-10-2014

100-20 round the last numbers so they have a 0 at the end so 4 or under is 0 and 5 or higher is 10 so 100 - 20 is 80
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