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Mathematics 12 Online
OpenStudy (sh3lsh):

4 *5 = 20 if we are using the base 10 however, if we use the base 18, 4*5 =12. Can someone explain this to me?

OpenStudy (anonymous):

Since:\[20 = 1\cdot 18^1+2\cdot 18^0\]20 is 12 (base 18). See where the 1 and 2 are coming from?

OpenStudy (sh3lsh):

Thanks!

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