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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

  1. 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.

  2. 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.

  3. 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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