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.

[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...

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.

See how we can add or subtract two functions to create a new function.

Adding and subtracting polynomials is all about combining like terms. When the terms have two variables, it gets a little bit tricky to figure out which terms are like terms. In this article, we review some examples and give you a chance...

[Free Registration/Login may be required to access all resource tools.] The video describes how to solve word problems using both addition and subtraction. The video is followed by additional practice problems.

[Free Registration/Login may be required to access all resource tools.] The video walks you through an example of pulling out key words to know what operation to use when working with money word problems. The video models converting...

[Free Registration/Login may be required to access all resource tools.] The video describes addition and subtraction vocabulary. The video is followed by practice problems utilizing the vocabulary.

[Free Registration/Login may be required to access all resource tools.] Find sums and differences of decimals using mental math.

Sing a song, practice step by step, and then assess your knowledge of adding and subtracting equations.

[Free Registration/Login may be required to access all resource tools.] Here you'll learn how to add and subtract polynomials, as well as learn about the different parts of a polynomial. Practice problems are also included.

Students add and subtract plays on a football field to practice working with negative and positive integers on the number line.

Learn how to add or subtract two rational expressions into a single expression.

This educational activity provides word problems with manipulatives for kids to practice adding and subtracting within 10. The word problems are read aloud and have objects that can be used for counting. Children may need assistance from...

This educational activity provides word problems with manipulatives for kids to practice adding and subtracting within 20. The word problems are read aloud and have objects that can be used for counting. Children may need assistance from...

Practice adding and subtracting numbers like 54 and 37 using a number line. Numbers used in these problems are all less than 100. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...

Practice subtracting fractions that have different denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

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...

Example: Subtract or add polynomials. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Analyze graphs that represent vector addition & subtraction. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

[Free Registration/Login may be required to access all resource tools.] In this learning module, students add and subtract three fractions with different denominators. Includes video demonstrating a sample problem [2:41] and a set of...

Practice your mental math skills with this site, where practice problems in addition, subtraction, multiplication, and division abound. Introductory, intermediate, and advanced levels are available. Just type in your answer and you'll...

A step-by-step tutorial showing how to add 2-digit numbers in place value columns without regrouping. Includes exercises to try. CCSS.Math.Content.3.NBT.A.2 Fluently add and subtract within 1000

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