Always Get the Number 15 Trick
Here is another cool simple trick that will always get the number 15.
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Think of any number.
Example 45786
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Multiply that number by 3
45786 x 3 = 137358
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Now add 45 to the answer
137358 + 45 = 137403
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Multiply the result by 2
137403 x 2 = 274806
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Divide that new answer by 6
274806 / 6 = 45801
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By subtracting this answer with your original answer will give you the number 15.