A detailed explanation of polynomials and like terms is followed with many examples of how to add and subtract them. Lessons for the teacher as well as interactive examples for the students provide plenty of opportunities for practice....

A lesson focused on subtracting mixed numbers using fraction strips and an interactive fraction pad.

When subtracting ten from a 2 digit number, 2nd graders should be able to compute the answer as fluently and comfortably as do when they add ten to a 2 digit number.

This site contains great information on adding and subtracting complex numbers. Several examples are given, along with a brief definition. Includes link to a graphing calculator tutorial.

A good refresher on how to perform subtraction with real numbers. Covers subtracting numbers with the same and different signs and simplifying expressions that have subtraction. View sample problems and complete practice exercises.

Add or subtract by entering one digit in each box.

Do you understand the concept of money enough to be able to subtract monetary amounts? This game has a virtual cash drawer where students pull the amount to answer the word problem.

Students can practice subtracting decimal numbers in this basketball game.

Explains how to subtract from three-digit numbers, with or without regrouping.

An online board game where students practice adding, subtracting, simplifying, and identifying equivalent fractions. By answering the question correctly students are able to roll the die to move forward on the board game.

Students practice solving simple one-step equations by playing an online math game.

Solving equations supports algebraic thinking which is needed for high school and beyond.

Rational expressions have never been so easy! Use this site to learn how to add and subtract them with ease and confidence. And common denominators? No Problem! Great practice problems are included to see how much you've learned.

[Free Registration/Login may be required to access all resource tools.] Here you'll learn how to add and subtract polynomials, as well as learn about the different parts of a polynomial. Practice problems are also included.

A tutorial will guide you through the rules and steps for adding, subtracting, multiplying, and dividing real numbers, as well as evaluating numeric expressions and using order of operations. Contains step-by-step solutions to example...

A complete explanation of complex numbers that includes lessons on adding, subtracting, multiplying, and dividing them, as well as more advanced topics.

Add, subtract, multiply and divide complex numbers using these easy-to-follow examples.

This article gives an overview for adding, subtracting, multiplying, and dividing polynomials. Examples are given, but more importantly, they are accompanied with explanations of why the process worked.

Kids learn about the science of the light spectrum. Wavelengths and frequencies of the electromagnetic waves including visible light, primary colors, and subtractive colors.

Demonstrates how to add, subtract, multiply, and divide functions. Includes an example of evaluation. Demystifies the notation.

Detailed math tutorial features notes and examples that define rational expressions and investigate how to reduce a rational expression to lowest terms, add, subtract, multiply, and divide rational expressions.

In this science fair project, paint color pie slices onto a wheel and spin the wheel on an electric drill. See how colors add together to make new colors. The Science Buddies project ideas are set up consistently beginning with an...

A short lesson on rational expressions. Includes a definition, examples, and exercises to choose from from introductory, moderate, or advanced.

This task challenges a student to use place value knowledge and understanding of operations.