CRYPTARITHMS

Puzzles for thinkers.
Think you can solve a cryptarithm?

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Sample Cryptarithm
Sample cryptarithm worksheet preview

What is a cryptarithm?

A cryptarithm is a logic puzzle where digits are replaced by letters. Each letter always represents the same digit, and you solve the arithmetic by deduction.

Learn how to solve Try one now
No math tricks, no guesswork required. Just patterns, constraints, and a satisfying finish.
How it works
  • Every letter maps to one digit (0–9)
  • Different letters mean different digits
  • Make a few deductions, then the whole puzzle unlocks
Sample Worksheet
Sample cryptarithm worksheet page

Worksheets Designed for Clarity

Each worksheet is carefully designed to be clear, balanced, and easy to work with. Generous space is provided to write algebraic equations, track deductions, and record intermediate steps, while a dedicated elimination grid keeps letter-to-digit possibilities organized at a glance. Clean spacing, consistent structure, and thoughtfully placed elements help you stay focused on solving the puzzle, creating a calm, intentional experience from the first line to the final solution.