try this out

If anyone knows how this is being done...post it, this is too weird. I've done it 4 times already, and it's got me everytime...

 

It's actually pretty simple. For any number you choose, when you substract the added digits from the original number, you'll always get a multiple of 9.
Try with 52: 5 + 2 = 7
52 - 7 = 45
Let's do 53: 5 + 3 = 8
53 - 8 = 45
See?
If you look in the table, all the multiple of 9s have the same sign.

 

meta ur right its always a multiple of 9 and each time u retry the symbols for the 9's cahnge thts how it looks lyk its picking a different number

Nice Job Meta

 

Well you know, I AM majoring in math, lol. No but really, my friend and me cracked this thing about 2 years ago or something...

 

i kinda understand how it works but not fully soooo if anyone could help me out please do

 

OK well, let's put it this way. For any 2-digit number you choose (10 - 99 inclusively), after you substract the sum of the digits from the original number, you'll ALWAYS get one of those numbers: 9, 18, 27, 36, 45, 54, 63, 72 or 81, which are all multiples of 9 right? So when you look in the table, the sign corresponding to all those numbers is the same. But to not make it look fishy, they change the sign assigned to the multiples of 9 everytime you replay the game.

But if you play it over and over, you'll realize that:
Numbers from 10 - 19 --> 9
Numbers from 20 - 29 --> 18
Numbers from 30 - 39 --> 27
so on and so on 'til
Numbers from 90 - 99 --> 81

Hope you understand now.

 

Did you read Meta's first post, that explains it pretty well. You can pick ANY two digit number, add its digits, and subtract them from the original number, and it will ALWAYS be a multiple of 9

99 (9+9=18), 99-18=81 81 is a multiple of 9
67 (6+7=13), 67-13=54 54 is a multiple of 9

Now look at the **** on the right, all multiples of nine (9, 18, 27, 36, 45...etc) have the same sign. SO no matter what your first number is, it's always going to work