The long-lost mind-reading skill, 99.99% people guessed it correctly, and chose any two digits (that is, choose any number from 10-99).

Let's assume that ten digits of a number between 10-99 are A and each digit is B, then this number can be expressed as 10a+B, and then the operation we want to perform is (10a+b)-(a+b) = 9a, so all the numbers we calculate are multiples of 9.

Because its so-called digital chart is different every time, but it makes you feel the same. But no matter how it changes, the numbers 9, 18, 27, 36, 45, 54, 63, 72, 8 1 are all the same. The crystal ball finally shows the same figure as these numbers. Answer: it doesn't care what number you choose, it only knows that your number is the calculated number above. See the first paragraph above for specific operation steps.

Now you see, the so-called magical "mind reading" is just a clever use of some mathematical operations and eye-catching methods. Unfortunately, people who blindly believe can only be deceived. As long as we scrutinize it carefully, it won't stand scrutiny. Of course, we can think of it as a numbers game, but remember, this is a science game, not a magic game. very simple