-----,VW
-...*-,GT
_________
-----IW
---VW
_________
---TVW
You call these letter problems or cryptarithmetics?
Is that Math?
Anyway, by trial and error, I got
-----,VW
-...*-,GT
_________
-----IW
---VW
_________
---TVW
-----,25
-...*-,13
_________
-----75
---25
_________
---325
Or, G=1, T=3, V=2, W=5, and I=7.
Ist to get is G=1, because G*VW = VW.
Then, by trial and error, T*W could be 6*2, 6*4, 6*8, 3*5, 7*5, or 9*5
That is, W is either 2, 4, or 8 if T=6. Or, W=5 if T is either 3, 7, or 9.
Blah, blah, blah,...
------------------------
I don't like this kind of Math---if this were Math. I don't go for too much trial and error. It is only guessing, or hit-or-miss. This is computer stuff, spreadsheet stuff, number crunching.
I like Math that is systematic--one thing leads to another, with no too much repititions.
Repititions, number-crunching, and no thinking is mechanical only. For computers only.