This great math practice game was created by Becky Kinney of moonlightmultimedia.org
Our thanks to her for letting us use it on our site. All Rights Reserved - MoonlightMultimedia
Regrouping
Sets of ten can be dragged from column to column, but single dots can not. Choose a new problem, switch from addition to subtraction, or swap the parts of a problem at any time.
Move all the dots to the bottom to complete a problem.
