The absolute value of a number is its distance from zero on a number line . For instance, and have the same absolute value (). So, the absolute value of a positive number is just the number itself, and the absolute value of a negative number is its opposite.

|-0.4|= 0.4

|-0.042| = 0.042

|-0.0048| = 0.0048

|0.04| = 0.04

|0.047| = 0.047