# Definition of Multiplicative Identity

A multiplicative identity is the number that leaves all other numbers unchanged when you multiply them by it.

The number that behaves like this is $\mathbf{1}$. If $x$ is any real number, then

$x \times 1 = 1 \times x = x$.

### Description

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.

### Audience

Year 1 to Year 12 students

### Learning Objectives

Learn common math terms starting with letter M

Author: Subject Coach
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