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Asked by Jay

Could you use doubling to multiply 7x 3? explain
15 years ago

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Answered by Reiny
sure you could
how about double the 7, then double again, and then subtract 7

7(2)(2) - 7
= 7(4-1)
= 7(3)

15 years ago
Answered by deven
21
11 years ago
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Could you use doubling to multiply 7x 3? explain

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