I'm unable to figure out the pattern for the problems below. I'd appreciate some help from anyone out there!
Each letter stands for one digit 0 - 9.
TRIED
+DRIVE
_________
RIVET
Thank you a bunch!
JZ
Here is a big hint.
Look at the second colomn.
You have one of two possibilities,
E+V=E (mod 10)
If the first colomn D+E<10
Otherwise,
1+E+V=E (mod 10)