A mathematical operation in which one number is taken away from another to determine the difference between them, often referred to as the process of reducing quantities.

The act of calculating how much remains after removing a specific quantity from a given amount, representing a fundamental concept in arithmetic known as reducing.

The process of computing the result that arises when a quantity is decreased by another, illustrating the concept of decrease or removal in numerical terms.

A fundamental mathematical procedure involving the extraction of one quantity from another, aimed at finding the remaining quantity or difference, contrasting with the operation of addition.