English – Español – Italiano – Deutsch – ??? This application is not a game, it contains math exercises for elementary school children.I will not need to explain how it works, this is a simple design but its contents is very important.I did not put the solution of exercises beacause they are easy to do, but if necessary, I will put it in the next versions.Adults who do not have the chance to go to school can also practice .If you find any bugs, please contact me at [email protected] practice!