Test your algebra skills, and train the fourbasic mathematical operations.

You can also choose if you want to separately train theaddition, the division, the multiplication or the division.

This app is useful for both kids learning the basic operationsand adults willing to do some mental gymnastics.

There is also a nice feature that will help you learn from yourmistakes: if you click the wrong answer, you can be sure that thewrongly answered question will be asked you again soon, so you havethe possibility to answer correctly the next time (and learn!).