CK-12 Foundation
Ck 12: Algebra: Additive Inverses and Absolute Values
[Free Registration/Login may be required to access all resource tools.] In this lesson, students learn about additive inverses and absolute values.
Wikimedia
Wikipedia: Additive Inverse
What is additive inverse? It means "opposite." Find out more about this concept in this detailed definition with examples and links to related terms.
University of Georgia
University of Georgia: Intermath Dictionary: Additive Inverse
"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.
Virtual Nerd
Virtual Nerd: Recognize Opposite Signs of Numbers
Use the number line to recognize the opposite of a number.
CK-12 Foundation
Ck 12: Algebra: Additive Inverses and Absolute Values Grades 8 9
[Free Registration/Login may be required to access all resource tools.] Learn about additive inverses and absolute values.
CK-12 Foundation
Ck 12: Algebra: Additive Inverses and Absolute Values Grades 9 10
[Free Registration/Login may be required to access all resource tools.] Find the opposites and absolute values of numbers.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Opposites
Find a quick, concise explanation of the property of opposites. Several examples are given and clearly explained.
Quia
Ixl Learning: Additive Inverses
Brush up on your math skills relating to additive inverses then try some practice problems to test your understanding.
Common Core Sheets
Common Core Sheets: Finding Opposites [Pdf]
This site provides worksheets covering the concept of finding opposites also know as additive inverses. There are ten worksheets and each has an answer key. All files are grouped together as a pdf file.
Cuemath
Cuemath: Converse Statement
A comprehensive guide for learning all about converse statements with definitions, how inverse and contrapositive are obtained from a conditional statement, solved examples, and practice questions.
OpenStax
Open Stax: Types of Body Movement
This site provides information regarding types of body movement. Movement types are generally paired, with one being the opposite of the other. Body movements are always described in relation to the anatomical position of the body:...
Khan Academy
Khan Academy: Negative Number Addition and Subtraction: Word Problems
Practice solving word problems with negative numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Signs of Sums
Practice determining whether the sum of two numbers is positive, negative, or zero. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Math2
Math2.org: Trigonometry Functions
A complete look at trig functions. From an "overview," page giving general definitions and important vocab words, to a listing of the 12 trig functions, to an explanation of the three modes used in trigonometry, to the procedures of how...
CK-12 Foundation
Ck 12: Algebra: Number Lines Study Guide
This comprehensive study guide highlights the main terms and formulas needed to review number lines. Examples are included.
CK-12 Foundation
Ck 12: Algebra: Absolute Value
[Free Registration/Login may be required to access all resource tools.] In this lesson students learn to evaluate absolute values, find the distance between two points, and solve absolute value equations. Students can watch a video...
CK-12 Foundation
Ck 12: Vector Subtraction
[Free Registration/Login may be required to access all resource tools.] Understand vector subtraction v - w as v + (-w), where -w is the additive inverse of w, with the same magnitude as w and pointing in the opposite direction....