How to add and subtract rational expressions is explained through the use of examples and a video lesson. [2:09]

This is a complete lesson with instruction and a variety of exercises, teaching how to add and subtract decimals with one decimal digit (tenths).

Red apples, orange candles, yellow stars, green frogs, and blue, indigo, and violet flowers-they all add up to Rainbow Math fun! During this adventure children learn the colors of the rainbow as they practice counting, adding and...

Gain an understanding of how to add or subtract polynomials by viewing an example and a video lesson.

[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,...

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.

Add and subtract proper and improper fractions with this calculator and see the work involved in the solution.