Adding and subtracting decimals with NLVM

Here is a great tool for using base-10 blocks for adding and subtracting decimals. It works with a computer and mouse, or any touch screen device.

National Library of Virtual Manipulatives

Click on the 5th link down the page "Base Blocks Decimals"

The program will create practice problems for you, or you can click on "Create problem" to make your own.

You can also choose how many decimal places you would like to work with.(we work with up to three)