Subtraction within 20: worksheets and games
Fill in the result of subtraction to the empty box.
How to solve this subtraction within 20 games?
Insert the result of the subtraction to the empty box.
Press "Check it" to find out if your answer is correct. If your result of subtraction is OK, the box will be green. If your answer isn´t correct, the box will be red and you will see the correct number.
Press the button "New game" and play another subtraction game.
This subtraction games teaches kids to subtract numbers up to 20. You can play subtraction within 20 games online, more than 400 tasks available.
Do you want to try something more difficult? Then play subtraction within 100 game.
Do you want to practice addition and subtraction at the same time? Then play this math crossword puzzle game.
Subtraction within 20: worksheets in PDF
Click the picture below and download free printable subtraction within 20 worksheets in PDF. The worksheet has two pages, the first one is the math crossword puzzle and the other one contains also the answers.