Each of the letters A,E,F,H,O,R,T,W,and X represents a different digit from 0 to 9 in the addition below. Can you find out which letters represent which numbers?

 WORTH
   THE
+EXTRA
------
EFFORT

The following set of assignments and result, in base 11, is not a solution, as it uses a digit outside the range 0 to 9 -- the A (substituted for the letter R) that represents the digit signifying ten.

T-7 R-10 O-3 F-0 E-1 H-4 W-9 A-2 X-6
  93A74
    741
+ 167A2
-------
 1003A7      

Posted by Charlie on 2005-09-03 18:37:46