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3 years ago

10

Use doubles to help you add 7+8

2 answers:

rodikova [14]3 years ago

6 0

You can subtract 8 -1=7 and then add 7+7=14 and then do 14+1=15 because we subtracted 1 from 8.

GarryVolchara [31]3 years ago

5 0

7 + 8 = 15 konfirmasion

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