Choose from a variety of Afterschool Adventures covering multiple subject areas. Each adventure includes a detailed plan, videos, learning games, and book suggestions.

In this exercise, students practice adding and subtracting fractions with unlike denominators word problems. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

Finding common denominators is no problem with Purplemath. Use this lesson to learn how to add and subtract rational expressions with these great examples.

Ten interactive questions on adding and subtracting fractions. Each question is supported by a detailed explanation of the solution.

Practice adding and subtracting positive and negative fractions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Choose from a list of pre-made arithmetic worksheets designed for fourth graders.

Choose from a list of pre-made arithmetic worksheets designed for third graders.

Choose from a list of pre-made arithmetic worksheets designed for second graders.

Practice solving word problems by adding and subtracting fractions. The fractions used in these problems have like (common) denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...

A 3-page handout with examples and exercises in adding, subtracting, and multiplying complex numbers in the complex plane, as well as finding complex conjugates.

[Free Registration/Login may be required to access all resource tools.] Practice adding and subtracting fractions with different denominators.

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

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

Challenge problems involving adding and subtracting fractions that have unlike denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

In this exercise, students practice using visuals to add and subtract fractions with unlike denominators. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

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

In this task, students are asked if there is an equilateral triangle ABC where two vertices are on the x-axis, and all vertices have integer coordinates. Aligns with G-GPE.B, N-RN.B, and F-TF.C.9.

This is a simple task that checks students' understanding of decimal operations by having them do computations with money. Aligns with 6.NS.B.3.

Add or subtract complex numbers, and plot the result in the complex plane. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

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.

You can learn to recognize negative numbers and do simple computation with negative numbers. The explanations are short, simple and clear. There is even a test to check your introductory skills.

Practice solving word problems by adding or subtracting decimal numbers.

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

Practice adding and subtracting mixed numbers with different denominators. No regrouping required.