# Math Definitions - Letter Q

### Chapters

### Quinary

# Definition of Quinary

**Quinary** numbers are made up only of the digits \(\{0,1,2,3,4\}\). Each place in a quinary number corresponds to a power of \(5\).

Because there are only \(5\) different possible digits in a quinary number, we also call them Base \(5\) numbers.

For example, the quinary number \(4301\) is equal to the decimal number \(4 \times 5^3 + 3 \times 5^2 + 0 \times 5^1 + 1 \times 5^0 = 4 \times 125 + 3 \times 25 + 0 + 1 = 576\).

Some other examples of quinary numbers are:

- \(44\), which corresponds to the decimal number \(24\).
- \(100\), which corresponds to the decimal number \(25\).
- \(104\), which corresponds to the decimal number \(29\).

### 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 Q

Author: Subject Coach

Added on: 6th Feb 2018

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