Add and subtract vectors given in component form. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Here is a site that clearly and thoroughly explains how to add and subtract signed numbers. There are example problems solved, problems for the student to attempt, and answers to the student problems. Point this site out to students who...

Explore how to add and subtract decimals with this interactive lesson. Then test your knowledge with a quick quiz.

How would you add 2 1/2 and 2/3? How would you find the difference between 2 1/2 and 2/3? Students continue to develop strategies for adding and subtracting fractions.

Check out this algebra lesson that explains how to add and subtract matrices.

In this exercise, students practice multiplying fractions by fractions. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

A tutorial as an introduction to polynomials. Basic terminology and simple algebraic manipulations. Offers discussions and practice exercises with answers and explanations.

Students practice solving simple one-step equations by playing an online math game.

Common Core standards encourage the use of models to build understanding in math. This lesson shows sometimes reluctant 2nd graders that models are helpful tools in solving mathematical problems.

Add and subtract rational expressions with relatively prime denominators by manipulating them to have the same denominators.

Add and subtract vectors given in component form.

This fifth-grade lesson teaches how to add and subtract unlike fractions using a video presentation and visual models. [7:19] Includes practice exercises.

Worksheet contains problems through which students can practice adding and subtracting integers. Real-world application of the skill is provided as well as a quick, diagnostic pre-test.

This learning tutorial investigates how to add and subtract rational expressions with like and unlike denominators. The lesson includes two videos that demonstrate the process of adding and subtracting rational expressions and four...

Use the examples to find the least common denominator in order to add and subtract rational expressions.

In this exercise, students practice addition using groups of 10 and 100. Students receive immediate feedback and have the opportunity to get hints, watch a video tutorial, and try questions repeatedly. CCSS.Math.Content.3.NBT.A.2...

Practice adding and subtracting mixed numbers with different denominators. Regrouping required.

What are opposites and what happens when you add them together? Students work with counters to model adding and subtracting integers.

This site provides students practice with the concept of adding and subtracting fractions. Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to practice the skill.

This site provides students practice with the concept of adding and subtracting decimals. Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to practice the skill.

[Free Registration/Login may be required to access all resource tools.] This lesson covers adding and subtracting matrices with the same dimensions. Students can watch a video tutorial, explore guided notes and then attempt practice...

Adding and subtracting polynomials is all about combining like terms. In this article, we review some examples and give you a chance for you to practice the skill yourself.

In this exercise, students practice adding and subtracting on the number line in word problems. Students receive immediate feedback and have the opportunity to watch a video tutorial, get hints, and try questions repeatedly.

Sixth graders work with a number line and football to model adding and subtracting integers.