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Old 03-02-2013, 09:17 PM   #21
Frosty Frosty is offline
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Join Date: Jan 2001
Location: Warshington
Casino cash: $5898243
Quote:
Originally Posted by AustinChief View Post
What trick? That any 2 digit number whose digits add up to 9 is also divisible by 9?
More like the digits of the multiples of 9 from 1 to 10 add up to 9. Not really a trick, I guess. I think the back of my mind was also thinking about how transposed numbers are divisible by 9 when I wrote "trick".
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