If the sum of 19968 and 22235 is expressed as 0063, and the product of 20108 and 19977 as 0362, then how would the difference between 20845 and 20116 be rendered?
(In reply to re: Dear All
Yes, Brian you were thinking along the right lines, but with the wrong encoding.
Here is a link that should help narrow down your search:
On reflection, I seem to remember that it was actually your own puzzle "Foundation Piece" that gave me the idea for this one.
Edited on February 15, 2011, 2:14 am
Posted by broll
on 2011-02-15 02:07:57