Grade 7 · The Number System

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

Describe situations in which opposite quantities combine to make 0.

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.