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

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asked Nov 11, 2017 123k views

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Bram Vanroy · Answer 1 · 2017-11-16T21:07:49+0000

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)

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

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