# Math Definitions - Letter O

### Chapters

### Odd Number

# Definition of Odd Number

An **odd number** is an integer that cannot be written as \(2\) times another integer.

For example, \(11\) is an odd number. The picture shows \(11\) shapes divided up into groups of two. There is one left over. This tells us that \(11\) is odd.

Every odd number has \(1,3,5,7\) or \(9\) as its final digit.

Some examples of odd numbers are \(-579\), \(-5\), \(3\), \(23\) and \(1,542,692,377\).

### 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 O

Author: Subject Coach

Added on: 6th Feb 2018

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