Ltrain909
Ltrain909 Ltrain909
  • 15-03-2016
  • Mathematics
contestada

Show how to make a ten to solve 13-7 ??

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apologiabiology
apologiabiology apologiabiology
  • 15-03-2016
13=3+10
so
13-7=10+3-7=3+10-7=3+3=6
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