Practice solving fraction addition and subtraction word problems. The fractions in these problems have unlike denominators.

Choose the step where an error was made in adding or subtracting polynomials. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.

Practice solving more challenging addition and subtraction word problems with "more" and "fewer". Multi-step problems are also included. Numbers used are 100 or less. Students receive immediate feedback and have the opportunity to try...

Use estimation to find a reasonable solution to multi-digit addition and subtraction problems. Numbers are less than or equal to 1000. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...

Practice solving word problems with addition and subtraction. These questions are comparison problems including difference unknown, smaller value unknown, and bigger value unknown. Numbers used are 100 or less. Students receive immediate...

Practice solving word problems with addition and subtraction. These questions are start unknown problems including add to and take from problems. Numbers used are 100 or less. Students receive immediate feedback and have the opportunity...

Practice solving problems like "___ - 45 = 27" where you have to figure out the missing value in an addition or subtraction equation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video...

Practice addition and subtraction with complex numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice solving word problems with addition and subtraction. These questions are start unknown problems including add to and take from problems. Numbers used are 100 or less.

[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to add and subtract compound units of capacity. Includes video demonstrating a sample problem [2:22] and a set of...

Demonstrates how to add and subtract fractions where the denominators are different. Includes sample problems to try.

[Free Registration/Login may be required to access all resource tools.] The video [0:34] describes how to add and subtract measurements of length from a given word problem. The video is followed by practice problems covering the topics...

[Free Registration/Login may be required to access all resource tools.] The video describes how to add and subtract measurements of length from a given word problem. The video is followed by practice problems covering the topics in the...

In the lesson plan on adding and subtracting within 10, students will use ten frames to add and subtract. They will also review key vocabulary terms, like sum, difference, and equal sign.

Short tutorial explaining how to add and subtract fractions, whole numbers, and mixed numbers. Includes example problems to try.

In this tutorial, students learn how to add and subtract decimals.

Tutorial demonstrates how to add and subtract fractions.

Sixth graders fluently add and subtract money with decimals using the standard algorithm.

Students add and subtract fractions using a common denominator.

Gain an understanding of how to add and subtract integers by viewing examples and a video lesson. [0:56]

[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to use addition and subtraction to solve simple word problems about metric capacity. Includes video demonstrating a...

Practice solving word problems with addition and subtraction. These questions are comparison problems including difference unknown, smaller value unknown, and bigger value unknown. Numbers used are 100 or less.

Perform and see examples of adding and subtracting polynomials on the WebMath "Solver."

Goes through the steps involved in adding and subtracting fractions with different denominators and provides examples.