+A **number line** is a visual representation of [Real Numbers](/wiki/Real_Numbers), typically shown as a horizontal line with an origin point and equally spaced markings. It helps in understanding the order and magnitude of numbers, and visually demonstrates [Arithmetic](/wiki/Arithmetic) operations like addition and subtraction.
+## See also
+- [Integers](/wiki/Integers)
+- [Coordinate System](/wiki/Coordinate_System)
+- [Absolute Value](/wiki/Absolute_Value)