noun. the extent to which or the limits between which variation is possible: the range of steel prices; a wide range of styles. the extent or scope of the operation or action of something: within range of vision.

The range math definition is the difference between the highest values and lowest values in a given set of numbers. What does range mean in math? It is the spread of the data, as in how far apart the lowest point of data is from the highest point of data.