Math Definitions - Letter I


Definition of Income

Definition of Income

Your income is the money you earn from working, doing business or making investments.

For example, Jasmin earned \(\$300\) from doing her job, received \(\$0.30\) in bank interest, and sold handcrafts for a profit of \(\$20\) last month. Here total income for the month was \(\$320.30\).


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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