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OpenStudy (anonymous):
How do u do 56*23?
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OpenStudy (unklerhaukus):
56*23 = (50+6)*(20+3) = 50*20 + 50*3 + 6*20 + 6*3
OpenStudy (unklerhaukus):
= (5*2)*100 + (5*3)*10 + (6*2)*10 + 6*3
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