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Hate 8

Find a calculator

Ask your friend to choose a number between 1 and 9 but is not allowed to choose the number 8.
Example : 7

Multiply the number by 9
7 x 9 = 63

Multiply the answer by 12345679  (no 8)
63 x 12345679 =  magic!

Try another number

PS :  Try more math tricks here.