Use this calculator for adding and subtracting integers. Positive and negative whole numbers are integers. The calculator shows the work for the math and shows you when to change the sign for subtracting negative numbers.

Features steps on how to add and subtract fractions with the same denominator.

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

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...

Worksheets provide practice with solving adding and subtracting fractions with answer keys are provided. You can even create your own worksheet or flash cards.

Estimate sums and differences for positive proper fractions, n/d (numerator/denominator). Use rounding to estimate answers when adding or subtracting proper fractions.

Teachers can assess students' knowledge of adding, subtracting, multiplying, and dividing decimals to hundredths with these printable worksheets. You can even create your own worksheet or flashcards.

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

When you're working on a problem with lots of numbers, as in economics, cryptography or 3D graphics, it helps to organize those numbers into a grid, or matrix. Bill Shillito shows us how to work with matrices, with tips for adding,...

By using like radicals, expressions are easily simplified using addition and subtraction. Examples are provided to demonstrate how to simplify radicals to create like terms.

[Free Registration/Login Required] This game provides practice in decimal arithmetic including addition, subtraction, multiplication, and division of decimals.

This math tutorial features notes and examples that illustrate complex numbers including standard form, adding, subtracting, multiplying and dividing them.

Practice exercise reviews complex numbers including standard form, adding, subtracting, multiplying and dividing them.