RE: Are You An Idiot? OK...the math works out in a predictable pattern...and the result is always a multiple of 9 (9,18,27, etc.)
From the top:
99 -> 9+9 = 18 => 99-18 = 81
98 -> 9+8 = 17 => 98-17 = 81
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89 -> 8+9 = 17 => 89-17 = 72
88 -> 8+8 = 16 => 88-16 = 72
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And so on.
Look through the table and you'll see that all the multiples of 9 have the same symbol. Each time through, the symbol changes, but the multiples of 9 all have the same symbol. |