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

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.

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...

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

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

[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.