Cryptarithm, also known as an alphametic or verbal arithmetic, is a type of mathematical puzzle where letters or symbols are used to represent digits. The goal of a cryptarithm is to decipher the correct assignment of digits to these letters or symbols in order to form a valid mathematical equation.
In a cryptarithm, each letter or symbol represents a unique digit from 0 to 9, and the objective is to find the correct substitution that satisfies the equation. The puzzle usually includes arithmetic operations like addition, subtraction, multiplication, or division.
We have prepared a tutorial on Cryptarithm which you can watch below. You may also download the slides here.