Mystic Ball!!! How does it work?

[leo8877]

http://www.mysticalball.com/

Prepare to be amazed....until someone tells us how it's done and spoils the fun.  :wink:

[ATB]

This has showed up here before.

Something about base values of 9 or something.

Math...who can understand it?

[Tscott]

Take any two digit number (10x+y) add the digits (x+y) and subtract that total from the original number

(10x+y)-(x+y)=10x+y-x-y=9x

The answer is always a multiple of nine.  Look at the symbol for 9, 18, etc. they're all the same.


EDIT: just to clarify: X is a whole number between 1 and 9, y is a whole number between 0 and 9.  Thus multiplying X by ten and adding Y gets you any two digit number.

[Al]

And the symbols change each time it reloads so you don't pick the same symbol over and over.