Handout
Wikimedia

Wikipedia: Additive Inverse

For Students 9th - 10th Standards
What is additive inverse? It means "opposite." Find out more about this concept in this detailed definition with examples and links to related terms.
Handout
University of Georgia

University of Georgia: Intermath Dictionary: Additive Inverse

For Students 3rd - 8th Standards
"What happens when you add opposite numbers together?" Understanding the additive inverse will help you to answer this questions. An explanation of additive inverse with examples and non-examples.