timmyG commented at 2009-08-28 01:02:41 » #101534

For those of you who don't know, it does seem to work out...

5 Points Flag

Anonymous commented at 2012-08-09 13:57:55 » #1135276

She added one more to every equation on one of the numbers

0 Points Flag

Anonymous commented at 2013-03-22 22:51:33 » #1288112

Well, kind of, anon 2. The way that base 9 works is that the number 9 and all multiples thereof don't exist; therefore, every 9 numbers, you add 1 to the solution. We therefore take 7x4, for example; in base ten, the answer is 28. However, in base 9, we skip 9, 18, and 27 -- essentially, they don't exist. Therefore, the product of 4x7 is 31 -- and she was indeed correct.

3 Points Flag

Anonymous commented at 2014-12-30 17:32:59 » #1661652

SHE'S A GENIUS!

2 Points Flag