subtraction
B1Pronunciation
UK
- /sʌbtrˈækʃən/
US
- /səbˈtrækʃən/
Description
- taking away
- reducing
- finding the difference
Imagine you have a pile of cookies, and your friend eats some. The process of figuring out how many are left after some are gone is subtraction. It is one of the four basic operations in math, along with addition, multiplication, and division. Most often, it means taking one number away from another to find the difference or see what remains. You also meet it in everyday situations like working out how much time is left, how much money was spent, or how many items remain after some are taken away.
Subtraction is the mathematical operation of taking one number or quantity away from another. It is about reducing an amount, finding the difference between two values, or working out what is left after something is removed. We usually show it with a minus sign (-). So, 5 - 2 = 3 means that if you start with five and take away two, you have three left.
In everyday life, the idea appears whenever something is taken away from a total. If you have ten dollars and spend three, subtraction helps you see that seven dollars remain. If a trip takes two hours but you have already traveled for thirty minutes, subtraction helps you find how much time is left. In school, shopping, cooking, and planning, it is one of the main ways we compare amounts and keep track of change.
In more advanced math, subtraction is important for solving equations, understanding negative numbers, and working with measurements, money, distance, and time. It is also widely used in accounting, science, engineering, and computing whenever people need to measure change or compare quantities.
So whether you are balancing a budget, measuring ingredients for a recipe, or counting down the days until a holiday, subtraction is a basic skill that reaches far beyond the classroom.
Examples
- 1
School math
The children are learning addition and subtraction this term.
- 2
Mental math
She did the subtraction in her head and answered in seconds.
- 3
Price calculation
The final price comes from the subtraction of the discount from the original total.
Pattern
subtraction of A from B
taking A away from B
Forms and spellings
2 forms open this card.
Main spelling
- subtractionnoun
Forms
- subtractionspluralnoun