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cryptarithm
A number puzzle in which a group of arithmetical operations has some or all of its digits replaced by letters or symbols, and where the original digits must be found. In such a puzzle, each letter or symbol represents a unique digit. The first example appeared in American Agriculturist in 1864. Specific types of cryptarithm include the alphametic, the digimetic, and the skeletal division.
Related categories
• GAMES AND PUZZLES
• MATHEMATICS
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