Virtual Nerd: How Do You Add Whole Numbers?

A collective groan can be heard when long division is mentioned. Here's a step-by-step demonstration of how to divide a two digit number by a one digit number, with a remainder.

This tutorial will show you how to multiply mixed fractions by first converting each to an improper fraction. [5:09]

What are compatible numbers? What are they used for? Is it like estimating? Is it like rounding numbers? The teacher will answer these questions and explain how to use compatible numbers.

You've got three fractions to add together. Wait! They have unlike denominators. So the first thing you have to do is find the least common denominator. Now multiply the terms so they all have the same denominator. Don't forget to...

Combine fractions that have unlike denominators and a variable. As usual the variable needs to get isolated. Then find the least common denominator so you can combine the fractions. Finally put it all back together.

You have two algebraic fractions to add together so what do you do now? You say yippee because they have a common denominator. This means that all you have to do is combine the like terms in the numerators. This would be a good segment...

The instructor demonstrates how to line up two polynomials vertically to add them together. She emphasizes lining up the terms with the same powers. She also identifies some places where there is no term and shows how to write a...

So you want to learn how to add polynomials? Here are the steps: rewrite by removing the parentheses, identify the like terms, group like terms together, combine the like terms, and finally rewrite the simplified expression.

What are partial products? The teacher uses a geometric model to illustrate how to break up double digit numbers to find the product of the numbers being multiplied. It's one method and is a good visual for your students who might need...

The first step in adding mixed numbers is to change them into improper fractions. Secondly, make sure the denominators are the same. If they are not the same, then find a common denominator. Make the proper conversions to the numerator...