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8 December, 00:50

Is 7, 849 a reasonable answer for 49 x 49? Why or why not?

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  1. 8 December, 00:56
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    No because when your are going to start to multiply, 9 x 9 = 81. So the last digit of 7,849 can't be 9. It has to be a 1 to make it reasonable in the beginning.
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