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This means that the second number should be expressed as its factors in order to make the multiplication easier. The prime factors of 12 are 2, 2 and 3. Thus it can be expressed as 3x2x2. This can make it easier to solve the multiplication because it splits up the process. 9x12 is now 9x3, then x2, then x2.

9x3 = 27

27x2 = 54

54x2 = 108

So 9x12 = 108.

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13y ago

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