Multiplication puzzle
1,391.2K Views
We can use SUBTRACTION and DIVISION
Let n be the number multiplying by
For 8 –
(n-n)-n-n-n-n-n-n-n-n / -1
Example: let n = 4
(4-4)-4-4-4-4-4-4-4 = -32 / -1 = 32
We know,
8*4 = 32
For 7 –
(n-n)-n-n-n-n-n-n-n / -1
Example: let n = 3
(3-3)-3-3-3-3-3-3-3 = -21 / -1 = 21
and we know,
7*3 = 21
Your Answer
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