Grade 7 · The Number System

CCSS.MATH.CONTENT.7.NS.A.1c

Understand subtraction of rational numbers as adding the additive inverse, p - q = p + (-q). Show that the distance between two rational numbers on the number line is the absolute value of their difference, and apply this principle in real-world contexts.

Read this standard on the official Common Core site

Lessons that teach this standard

• Adding and Subtracting Integers

  How to add and subtract negative numbers using the number line, why subtracting is the same as adding the opposite, and how to handle two signs in a row.