karinaosorio59 karinaosorio59
  • 17-02-2016
  • Mathematics
contestada

which way shows how to make a ten to solve 13-7

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vanfitchrocks
vanfitchrocks vanfitchrocks
  • 22-02-2016
If you want to make 10, you can take 3 from the 13 and add it to the 7. You will then have 10+10 which equals 20.

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