👨‍🎓 Kopfrechnen

#Head arithmetic

#Brain training apps

Activate your brain by doing mental arithmetic with brain training apps.

Exercise your head once a day!

# Have fun playing with family and friends.

Play at a difficulty level that suits your skills.

Entertaining for all ages.

Become a skilled arithmetician useful for math studies.

You can play offline.

Increase your ability to concentrate through brain activation.