Common Core Math Vocabulary

Number Line - Definition with Examples

What is a Number Line? 

Number Line Definition: A number line is defined as a straight line with numbers placed at equal segments or intervals along its length. A number line can be extended infinitely in any direction. 

Number Line

The numbers on the number line increase as one moves from left to right.

Comparing numbers on number line

 

Representing Numbers on a Number Line

A number line can be used to represent both negative and positive integers.

Representing negative and positive numbers on number line

Fractions and decimal numbers can also be represented on a number line.

Representing Fractions and decimal numbers on number line

 

Number Line as a Teaching Tool

Number line is used to teach many math concepts like:

Addition:

Addition on number line

 

Subtraction:

Subtraction on number line

 

Multiplication:

Multiplication on number line

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