Fluently add and subtract multi-digit whole numbers using the standard algorithm.

Popular Tutorials in Fluently add and subtract multi-digit whole numbers using the standard algorithm.

• • 

  How Do You Add Whole Numbers?

  To add numbers, you can line up the numbers vertically and then add the matching places together. This tutorial shows you how to add numbers vertically!

• • 

  How Do You Subtract Whole Numbers?

  Subtracting numbers is easier than you might think! Watch this tutorial to see the step-by-step process of lining up the numbers vertically to subtract them.