Chris wants to triple 63.374. He says it must end in 9. Is he correct? Explain your answer.

asked Mar 25, 2015 151k views

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he is wrong. we are only looking at the last number which is 4
if we tripple 4 or 4*3 we get 12 which ends in 2, not 9

Bogtan answered Mar 29, 2015

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