How to simplify each equation for example (18+9+1+12) prove youre answer

asked Jun 24, 2016 196k views

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add all the numbers and remove the ( ) 18+9='27 27+1=28 28+12=40

Aystub answered Jun 25, 2016

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this is simple math facts
18+9=27
27+1=28
28+12=40
the answer is 40

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