Math Definitions - Letter I

Inverse Operation

Definition of Inverse Operation

An inverse operation is an operation that undoes the work of another operation.

For example, addition and subtraction are inverse operations. If we start with \(2\) and add \(3\), then we end up at \(5\). If we then subtract \(3\), we end up back at \(2\) again. So, subtracting \(3\) has undone the work of adding \(3\).

Multiplication (except by zero) and division are also inverse operations. For example, if we start with \(3\) and multiply it by \(2\), we end up with \(6\). If we divide \(6\) by \(2\), we end up at \(3\) again. So, dividing by \(2\) has undone the work of multiplying by \(2\).

Definition of Inverse Operation


The aim of this dictionary is to provide definitions to common mathematical terms. Students learn a new math skill every week at school, sometimes just before they start a new skill, if they want to look at what a specific term means, this is where this dictionary will become handy and a go-to guide for a student.


Year 1 to Year 12 students

Learning Objectives

Learn common math terms starting with letter I

Author: Subject Coach
Added on: 6th Feb 2018

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