# Cryptarithms

No. of Players: | 1+ |

Type of Game: | written |

What you need: | pen and paper |

## Goal

To create or solve mathematical puzzles where digits are replaced by letters.

## How to play

A cryptarithm (or alphametic) puzzle is a puzzle where words are arranged in a mathematical expression with letters substituted for numbers. The most common mathematical expression is addition, but subtraction, multiplication and division problems can be turned into a cryptarithm by replacing numbers with appropriate letters. A few rules are usually established, such as: the leading letter cannot be zero, each letter must represent a unique digit, and solutions must be unique. Players can challenge themselves by trying to create their own cryptarithm, or they can try solving cryptarithms created by others.

## Examples

(1) Here is a famous cryptarithm and its solution:

Solution:

(2) Can you determine the value of each letter in this well-known multiplication cryptarithm?

Solution: