Math Definitions - Letter O

Open Sentence

Definition of Open Sentence

An open sentence is a mathematical statement which may be either true or false, depending on the values of its variables.

For example, if we say that \(x - 2 not less than \(7\), and the statement is false. If \(x = 8\), then \(x - 2 = 8 - 2 = 6\), which is less than \(7\), and the statement is true.


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 O

Author: Subject Coach
Added on: 6th Feb 2018

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