Seudónimo
Seudónimo
16-12-2015
Mathematics
contestada
Use doubles to help you add 7+8
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AgiethaAP
AgiethaAP
16-12-2015
7 + 8 = 15 konfirmasion
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Аноним
Аноним
17-12-2015
you can subtract 8 -1=7 and then add 7+7=14 and then do 14+1=15 because we subtracted 1 from 8.
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