Mathematical subtraction is the process of determining the numerical difference between two numbers, usually integers. Subtraction, sometimes called "taking away," is one of the four basic arithmetic operations. It can be done in one step, which makes it easier to learn than multiplication or division. The other three major mathematical operations are addition, multiplication, and division.
Mathematical subtraction is a fundamental math skill that everyone needs to know. By the time we reach adulthood, we have all had many opportunities to practice and learn subtraction. We might not be aware of how much we are doing mathematical substractions when calculating the number of days left in school, figuring out how much to tip at dinner, or even catching errors in our bank account. Behind each of these tasks are the same math skills that help us solve mathematical subtractions problems.