Cryptarithm, free to play
In this sum every letter stands for a digit. Work out which, so the sum comes out right.
Full rules and tips: how to play Cryptarithm
- Three levels
- A daily puzzle
- Hints
- One answer each
How to play
Read the sum
Every letter is a digit. The same letter is always the same digit, different letters are different digits, and no number starts with 0.
Start at the right
Begin with the rightmost column, use the clues, and remember to carry. A carry into the leftmost column can only be 0 or 1.
Check and finish
Press Check any time, or Hint for a nudge. Every puzzle has exactly one answer.
Ways to play
Good to know
Quick answers about playing Cryptarithm on Wittlo.
Learn while you play
A good, light workout for careful number reasoning. Fun first.
Is Cryptarithm free?
Yes. It is free to play, with no sign-up and nothing to install.
What is a cryptarithm?
It is a sum where letters replace digits. You work out which digit each letter stands for.
Does every puzzle have one answer?
Yes. A solver checks that each puzzle has exactly one solution.
Can I see the solution?
Yes. Press Show solution if you want to see it.
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