Number Line

A number line is a straight, horizontal line that visually represents numbers in order, usually with zero in the center. Numbers increase to the right and decrease to the left. It helps illustrate relationships like addition, subtraction, and concepts such as positive and negative numbers. Each point on the line corresponds to a specific number, and the distance between points indicates the size of the difference. Number lines are useful tools for understanding numerical concepts, performing calculations, and gaining a visual sense of how numbers relate to each other within a continuous spectrum.