So, in the set. 5 -1 6 -2 0 The highest number is 6 and the lowest number is - 2, so the range is: 6 - (-2) = 6 + 2 = 8 Think of it as the distance between 6 and - 2 on the number line, like this: ---|---|---|---|---|---|---|---|---|---|---|---|-- ... -3 -2 -1 0 1 2 3 4 5 6 7 8 ...