math magic tricks think of a number

Math “magic” tricks, think of a number – wtf fun facts

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10 thoughts on “math magic tricks think of a number”

  1. Of course, it logically works. If you simplify it, you basically double it, add 6, undouble it, which gives your number plus three, and then subtract your number. It always leaves 3. It’s not fascinating, it’s normal and logically simple.

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  2. Okay so you have a number and subtract that number I the end. And you are still surprised you get another, predetermined number.
    Please hand me your “functional human” cards people, if you were actually surprised by that…

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