Curated OER
Solving Equations
In this Algebra II worksheet, 11th graders use the properties of equality to solve multi-step equations in one variable. The tow page worksheet contains explanation, guided examples, and fifteen practice problems. Answers are...
Curated OER
Multiplying Decimals and Mixed Numbers
Students multiply decimals and/or mixed numbers. They explore the effects of multiplying decimals and mixed numbers. They practice estimating answers when a number is multiplied by a decimal or mixed number.
Curated OER
Vocabulary Word Search Puzzle
In this literacy worksheet, middle schoolers find the words that are in the word search puzzle that focus upon the vocabulary that is from the theme of the sheet.
Curated OER
Integer Arithmetic
Students solve integer-based problems. They add and subtract integers as well find missing integers. They represent a scenario involving positive and negative integers and solve it.
Curated OER
Elasticity of Gases
Students investigate gas laws and apply them in experimental conditions. Using an apparatus composed of a syringe and wooden blocks, they experimentally verify Boyle's and Charles' laws of gases.
Curated OER
Long Division
Fourth graders examine and demonstrate the steps of long division. They discuss why we use long division, and observe the teacher draw an illustration of a division problem. Students then solve a variety of long division problems,...
AAA Math
Aaa Math: Inverse Relationship of Addition & Subtraction
There is a great interactive problem set for students to practice the concept of the inverse property. This would be a great review before a unit on solving basic equations.
Primary Resources
Primary Resources: Addition and Subtraction Higher Numbers
An extensive selection of teacher resources to aide in teaching and reviewing addition and subtraction of two and three digit numbers, inverse operations, counting on, and other mental strategies for addition and subtraction. Resources...
Sophia Learning
Sophia: Inverse Operations
This video lesson introduces and provides examples of inverse operations. A short quiz follows to test students' understanding of the skill.
AAA Math
Aaa Math: Inverse Relationship of Subtraction and Addition
Students explore the inverse relationship of addition and subtraction. The resource provides self-check exercises and timed learning games to practice the concept.
E-learning for Kids
E Learning for Kids: Math: Carnival Parade in Rio: Addition and Subtraction
Help keep the carnival parade safe by helping officer Davi with his addition and subtraction!
Mangahigh
Mangahigh: Number: Use Inverses
Explore addition and subtraction and how they are related.
CK-12 Foundation
Ck 12: Algebra: Single Variable Addition Equations
[Free Registration/Login may be required to access all resource tools.] Solve single variable equations involving addition.
AAA Math
Aaa Math: Complete a Numerical Sentence Subtraction
Students can practice solving subtraction equations through these interactive learning exercises. Three games are also available to challenge students' understanding of the skill.
AAA Math
Aaa Math: Inverse Relationship of Addition and Subtraction
Explains the inverse relationship between addition and subtraction. Gives exercises and games to practice this skill.
CK-12 Foundation
Ck 12: Algebra: Inequalities With Addition and Subtraction
[Free Registration/Login may be required to access all resource tools.] Solve inequalities using addition or subtraction
CK-12 Foundation
Ck 12: Algebra: Single Variable Addition Equations
[Free Registration/Login may be required to access all resource tools.] Solve single variable addition equations
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....
CK-12 Foundation
Ck 12: Algebra: Single Variable Subtraction Equations
[Free Registration/Login may be required to access all resource tools.] Solve single variable subtraction equations
CK-12 Foundation
Ck 12: Algebra: One Step Equations and Inverse Operations
[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...
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.
CK-12 Foundation
Ck 12: Arithmetic: Subtraction of Rational Numbers
[Free Registration/Login may be required to access all resource tools.] In this lesson, students learn how to subtract rational numbers. Students examine guided notes, review guided practice, watch instructional videos and attempt...
AAA Math
Aaa Math: Inverse Relationship of Addition and Subtraction
This site introduces addition and subtraction fact families and provides an opportunity for students to practice the skill.
Beacon Learning Center
Beacon Learning Center: Checking Subtraction
Students can explore the inverse relationship of addition and subtraction in this interactive web lesson.