Re: Ooh, Magic.......
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Re: Ooh, Magic.......
Hmmm, whatever number you pick, that calculation always ends up being a multiple of 9, and all the multiples of 9 have the same symbol next to them.
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Re: Ooh, Magic.......
Spoilers below ...
Just write out the trick as an equation:
10x + y - (x + y)
= 10x + y - x - y
= 9x
You always get a multiple of 9. So the 9th symbol is always the same.
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Ooh, Magic.......
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