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Color-grid game - vertical subtraction practice
(2nd-4th grade math)

Practice vertical (column) subtraction, including regrouping in subtraction, with this fun and colorful online game!

First choose the settings (below) and then you will see a colorful grid with question marks. Click any of the tiles to get an subtraction problem to solve. Once you solve all the problems, your color grid will be complete and you'll see a fun surprise!

The problems include empty boxes for you to do the regrouping. You can also click on a number to cross it out. These are just to help you do the subtraction; the program does not check the actual regrouping part, but just the answer.

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