Seudónimo Seudónimo

23-02-2016
Mathematics

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break apart ones to make a ten then add and write a sum 23+9

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apologiabiology apologiabiology

23-02-2016

ok so

you can make a 10 with the 9

23+9=20+3+9=20+2+1+9=20+2+10=20+10+2=30+2=32

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