Mind Reader !!!

[PeekHoles]

See if this thing can read your mind Sorry if its been posted before, my first time seeing this...

http://mr-31238.mr.valuehost.co.uk/a...sh/psychic.swf

[SpaceAce]

We've been over this alrteady The answer is always a multiple of 9 (including 0), so it just makes those the same symbol every time and it's right.

SpaceAce

[PeekHoles]

I new there was some sort of formula just could figure it out...

[gezzed]

Alright, it looks like the math geek must strike again.

Any two digit number can be represented by 10x + y.

When you pick a two digit number and then subtract the sum, you get the following:

(10x + y) - (x + y)

Expanding you get:

10x + y - x - y

And finally:

9x

So, your answer will be the first digit of the number you picked multiplied by nine, regardless of what your second number was.