McGraw Hill
Glencoe Mathematics: Online Study Tools: Adding and Subtracting Like Fractions
This site gives a short interactive quiz which allows students to self-assess their understanding of the concept of adding and subtracting like fractions.
Discovery Education
Discovery Education: Web Math: Add and Subtract Polynomials
Perform and see examples of adding and subtracting polynomials on the WebMath "Solver."
Texas A&M University
Wtamu Virtual Math Lab: Beginning Algebra: Adding and Subtracting Polynomials
A tutorial as an introduction to polynomials. Basic terminology and simple algebraic manipulations. Offers discussions and practice exercises with answers and explanations.
CK-12 Foundation
Ck 12: Elem Math: Mixed Adding and Subtracting of Capacities (English Units)
[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...
Cool Math
Coolmath: Coolmath4kids: Adding and Subtracting Fractions With Different Denominators
Demonstrates how to add and subtract fractions where the denominators are different. Includes sample problems to try.
Cool Math
Coolmath: Coolmath4kids: Adding and Subtracting Fractions With Whole and Mixed Numbers
Short tutorial explaining how to add and subtract fractions, whole numbers, and mixed numbers. Includes example problems to try.
Math Planet
Math Planet: Pre Algebra: Adding and Subtracting Integers
Gain an understanding of how to add and subtract integers by viewing examples and a video lesson. [0:56]
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Adding and Subtracting Inequaliites
"Dr. Math" provides an explanation on remembering when inequalities may be added and subtracted. The explanation is in response to a question submitted by a student.
Other
Chili Math: Add and Subtract Numbers Using the Number Line
Adding and subtracting numbers on a number line is a neat way to see how numbers are added and subtracted using visual interpretations.
CK-12 Foundation
Ck 12: Elem Math: Adding or Subtracting Lengths in One Step
[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...
CK-12 Foundation
Ck 12: Elem Math: Adding or Subtracting Lengths in One Step (English Units)
[Free Registration/Login may be required to access all resource tools.] A video and practice questions on how to solve word problems with simple addition and subtractions of lengths. [0:20]
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting Money With Pictures in Columns
[Free Registration/Login may be required to access all resource tools.] The resource begins with a video that describes and shows the process of adding money by lining them up in columns. The pictures included in the video and the...
Khan Academy
Khan Academy: Adding and Subtracting Mixed Numbers With Unlike Denominators 2
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.
Khan Academy
Khan Academy: Add and Subtract Fractions: Word Problems
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.
Khan Academy
Khan Academy: Add and Subtract Fractions Challenge
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.
Khan Academy
Khan Academy: Add and Subtract Mixed Numbers With Unlike Denominators 2
Practice adding and subtracting mixed numbers with different denominators. Regrouping required. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Add and Subtract Fractions: Word Problems 1
Practice solving word problems by adding and subtracting fractions with like denominators. Gaby ate 2 slices of pie and Daniel ate 2. If there were 10 slices of pie all together, what fraction did they eat? Students receive immediate...
Lawrence Hall of Science
The Math Page: Skill in Algebra: Adding and Subtracting Signed Numbers
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...
Khan Academy
Khan Academy: Visually Add and Subtract Fractions
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.
Math Drills
Math Drills: Money Worksheets
Download these free worksheets to sharpen your money skills. Sheets focus on adding and subtracting money, counting coins, dollars, making change, and multiplying and dividing money.
Khan Academy
Khan Academy: Add and Subtract Mixed Numbers With Unlike Denominators 1
Practice adding and subtracting mixed numbers with different denominators. No regrouping required. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Add and Subtract Polynomials
Exercises for practicing adding and subtracting polynomials. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Khan Academy
Khan Academy: Add and Subtract Polynomials: Two Variables
Practice adding and subtracting polynomials. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Khan Academy
Khan Academy: Adding and Subtracting Functions
See how we can add or subtract two functions to create a new function.