A real number is a number that can be positive or negative and have decimal places after the point. Example: 3.44, -56.1
Try this Drag the orange dot below to move it along the number line

A real number is a value that represents any quantity along a number line. Because they lie on a number line, their size can be compared. You can say one is greater or less than another, and do arithmetic with them.

Other kinds of numbers

Other number topics

Scalar numbers

Counting numbers

Numbers that have factors

Special values