Unit Plan
Khan Academy

Khan Academy: Negative Number Addition and Subtraction: Word Problems

For Students 6th - 8th Standards
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.
Unit Plan
E-learning for Kids

E Learning for Kids: Math: Carnival Parade in Rio: Addition and Subtraction

For Students 3rd - 5th Standards
Help keep the carnival parade safe by helping officer Davi with his addition and subtraction!
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Single Variable Addition Equations

For Students 6th - 7th
[Free Registration/Login may be required to access all resource tools.] Solve single variable equations involving addition.
Activity
AAA Math

Aaa Math: Inverse Relationship of Subtraction and Addition

For Students K - 1st Standards
Students explore the inverse relationship of addition and subtraction. The resource provides self-check exercises and timed learning games to practice the concept.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Two Step Equations With Addition and Division

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Solve one and two-step equations by using the inverse properties of addition and division
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Two Step Equations With Addition and Multiplication

For Students 8th Standards
[Free Registration/Login may be required to access all resource tools.] Solve one and two-step equations by using the inverse properties of addition and multiplication
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Inequalities With Addition and Subtraction

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Solve inequalities using addition or subtraction
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Single Variable Addition Equations

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Solve single variable addition equations
Activity
Texas A&M University

Wtamu Virtual Math Lab: Beginning Algebra: Adding Real Numbers

For Students 9th - 10th Standards
A good refresher of how to perform addition of real numbers. Covers how to add numbers of same sign and of the different sign, and how to find the additive inverse of a number. View several example problems and step-by-step solutions and...
Unit Plan
Sophia Learning

Sophia: Inverse Operations

For Students 6th - 8th
This video lesson introduces and provides examples of inverse operations. A short quiz follows to test students' understanding of the skill.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: One Step Equations and Inverse Operations

For Students 6th - 9th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson students solve equations involving addition and subtraction. Students examine guided notes, review guided practice, watch instructional videos and...
Activity
Common Core Sheets

Common Core Sheets: Finding Opposites [Pdf]

For Students 5th - 7th
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.
Handout
Help Algebra

Help algebra.com: Properties of Real Numbers

For Students 9th - 10th
Both additive and multiplicative properties of real numbers are presented on this page. An example demonstrates the distributive property.
Activity
Shodor Education Foundation

Shodor Interactivate: Identity Properties

For Students 3rd - 8th
The resource consists of a discussion between a mentor and two students about how to use additive and multiplicative identity and inverse properties. Examples and explanations of each are included.
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Oswego City School District

Regents Exam Prep Center: Practicing With Properties of Real Numbers

For Students 9th - 10th Standards
Test your knowledge of the number properties. This challenging practice really puts you to the test. Assessment covers all number theory properties: associative, commutative, distributive, inverse, and identity.
Activity
Texas A&M University

Wtamu Virtual Math Lab: Beginning Algebra: Properties of Real Numbers

For Students 9th - 10th Standards
Find definitions and examples of commutative property, associative property, distributive property, identity property, inverse property, and multiplicative inverse. This tutorial also offers practice exercises for you to complete after...
Activity
Washington State University

Washington State University: Real Numbers

For Students 9th - 10th Standards
This site from Washington State University provides properties and rules of addition and multiplication that help with proofs.
Unknown Type
Illustrative Mathematics

Illustrative Mathematics: 4.oa Comparing Growth, Variation 2

For Teachers 3rd - 5th Standards
The purpose of this task is to assess students' understanding of multiplicative and additive reasoning. Aligns with CCSS.Math.Content.4.OA.A.1 Interpret a multiplication equation as a comparison
Unit Plan
CK-12 Foundation

Ck 12: Algebra: One Step Equations and Inverse Operations

For Students 6th - 8th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson, students will be solving an equation with one step. Students examine guided notes, review guided practice, watch instructional videos and attempt...
Unit Plan
AAA Math

Aaa Math: Inverse Relationship of Addition and Subtraction

For Students 1st - 3rd Standards
Explains the inverse relationship between addition and subtraction. Gives exercises and games to practice this skill.
Activity
AAA Math

Aaa Math: Inverse Relationship of Addition and Subtraction

For Students Pre-K - 1st Standards
This site introduces addition and subtraction fact families and provides an opportunity for students to practice the skill.
Handout
Other

Sierra College: Elementary Algebra Review Sheet and Common Formulas

For Students 9th - 10th
This review sheet includes important rules, properties, formulas, and equations needed to solve many Algebra problems.
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Inverse Operations

For Students 9th - 10th Standards
Find a quick, concise explanation of inverse operations as in addition and subtraction, multiplication and division, and to a certain extent exponents and logarithms. Examples are given and clearly explained.
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: Intermediate Algebra: Properties of Real Numbers

For Students 9th - 10th Standards
After finishing this tutorial, you'll be well versed in various properties of real numbers: identity and inverse properties, commutative and associative properties, and distributive properties. You'll also know about the various symbols...

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