daisy36 daisy36

07-09-2016
Mathematics

contestada

number sentence commutative property of addition 3+9=12

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Аноним Аноним

07-09-2016

9+3 ←commutative property of 3+9

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wadenjan wadenjan

07-09-2016

3+9=12 and 9+3=12

you can change the order and not change the answer

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