ot:pretty cool!!
02-13-2003 | 08:56 AM
#11
Platinum Member
Joined: Jun 2001
Posts: 21,346
Likes: 10
Originally posted by Sea Ya
Every possible answer is divisible by nine. Did anybody finish high school?
Every possible answer is divisible by nine. Did anybody finish high school?
Any two-digit number, AB, can be expressed as:
(A x 10) + B ...
When you run the formula given in the link, the expression becomes:
AB - (A + B)
Therefore:
(A x 10) + B - (A + B)
Which equals:
10A + B - A - B
This reduces to
10A - A, in other words 9A!
Look at all possibilities on the chart and every multiple of 9 will have the same symbol, just different after each reload.
