camille3 camille3

30-09-2015
Mathematics

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use mental math to find the sum 52+19

Respuesta :

30-09-2015

I knew that 9 plus 2 equals 11 so I add 5+1+1 which equals 7. Then I add the one which equals 71

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Аноним Аноним

30-09-2015

mental math
52+9=61 there ya go I hope your happy

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