Common Core Math 6.ns.7c

The Number System: Apply And Extend Previous Understandings Of Numbers To The System Of Rational Numbers.

Understand the absolute value of a rational number as its distance from 0 on the number line; interpret absolute value as magnitude for a positive or negative quantity in a real-world situation. For example, for an account balance of -30 dollars, write |-30| = 30 to describe the size of the debt in dollars.