Get independent practice adding and subtracting fractions with unlike denominators. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.

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

[Free Registration/Login may be required to access all resource tools.] This lesson covers adding and subtracting rational expressions when one of the denominators is the LCD. Students can look at guided notes and attempt practice problems.

In this lesson, 7th graders add and subtract rational numbers on a number line.

Students learn about the concept of adding algebraic fractions by exploring a tutorial. They can then test their knowledge by taking a ten question assessment that increases in difficulty as they correctly answer questions.

This site provides students practice with the concept of algebraic 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.

[Free Registration/Login may be required to access all resource tools.] Represent sums and differences on a number line and add and subtract rational numbers.

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

In this interactive, students add and subtract plays on a football field to practice working with negative and positive integers on the number line. Each set of randomized drives consists of seven to nine plays and ends with a touchdown....

Print or create worksheets or flashcards to assess students' understanding of operations to add, subtract, multiply, and divide rational numbers.

[Free Registration/Login may be required to access all resource tools.] In this lesson students find sums of integers by using a number line. Students examine guided notes, review guided practice, watch instructional videos and attempt...

Practice taking the absolute value of the difference of two numbers to find the distance between those numbers. Apply this principle to solve word problems. Students receive immediate feedback and have the opportunity to try questions...

Understand that polynomials form a system analogous to the integers, namely, they are closed under the operations of addition, subtraction, and multiplication i.e. one can add, subtract, and multiply polynomials.

Spider Match is a multi-player game that allows students from anywhere in the world to compete against one another while practicing adding and subtracting integers!

In this short Cyberchase video, students learn about positive and negative numbers as Harry tries to score a total of 50 points in various events to qualify for the Northern Hemisphere games in New Orleans. [3:24]