How do you calculate 7 x 8? Either add 8 to 8 then add 8 more to the running total 6 more times. Or, multiply 7 by 10 = 70, subtract 8 from 10 and multiply 7 by the answer = 14, then subtract this result from 70 = 56.
Simple. I’m hoping my resident teenage genius will teach me to walk on water next.
Tuesday, 22 December 2020
Sideways mathematics
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