dandon1 dandon1
  • 03-11-2016
  • English
contestada

Explain why you would make one of the addenda a tens number when solving an addition problem

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AutoBanana01 AutoBanana01
  • 06-12-2016
For example if adding 9 + 9 you would take whatever needed from the second number to fill the first number (In this case being one, to have 10 + 8) and replace the 0 with the second number (In this case being 18) 
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