eBook
Math Planet

Math Planet: Algebra 1: Add and Subtract Rational Expressions

For Students 9th - 10th Standards
How to add and subtract rational expressions is explained through the use of examples and a video lesson. [2:09]
Handout
Other

Chili Math: Adding and Subtracting Fractions With Same or Like Denominator

For Students 4th - 8th Standards
Features steps on how to add and subtract fractions with the same denominator.
Website
Oswego City School District

Regents Exam Prep Center: Rational (Fractional) Expressions

For Students 9th - 10th Standards
A wealth of resources to help you in planning classroom instruction on rational expressions: lesson plans offer guidelines for and examples of simplifying, adding and subtracting, multiplying and dividing rational expressions; practice...
eBook
Math Planet

Math Planet: Monomials and Adding or Subtracting Polynomials

For Students 6th - 8th
Gain an understanding of how to add or subtract polynomials by viewing an example and a video lesson.
Unit Plan
CK-12 Foundation

Ck 12: Complex Numbers

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers the powers of i, and adding and subtracting complex numbers, as well as how to plot them in the complex plane. Students examine guided notes,...
Website
Ducksters

Ducksters: Kid's Games: Fast Math in Outer Space Game

For Students 3rd - 8th
Test your math skills and speed with this fun space battle game. You will have to do more than just shoot straight, you will have to add, subtract, divide, and multiply quickly to win this battle.
Interactive
Calculator Soup

Calculator Soup: Adding Fractions Calculator

For Students 9th - 10th
Add and subtract proper and improper fractions with this calculator and see the work involved in the solution.
Unknown Type
Paul Dawkins

Paul's Online Notes: Rational Expressions: Practice Problems

For Students 9th - 10th
Practice exercise reviews how to reduce a rational expression to lowest terms and how to add, subtract, multiply and divide rational expressions.