Absolute Value

How to find the value of an absolute value number: formula, 3 examples, and their solutions.

Formula

Formula

The absolute value sign, ||, changes the sign of a number to plus.
So the absolute value doesn't change the sign of a non-negative number.
But the absolute value does change the sign of a negative number: from minus to plus.

Example 1

Example

Solution

5 is plus.
So the absolute value doesn't change its sign.
So |5| = 5.

Example 2

Example

Solution

0 is not minus.
So the absolute value doesn't change its sign.
(Actually, 0 doesn't have a sign.)
So |0| = 0.

Example 3

Example

Solution

-2 is minus.
So the absolute value does change its sign:
from minus to plus.
So |-2| = 2.