Mental arithmetics for the whole family!

It is handy to be able to do mental arithmics in daily life and job or school. Train this useful skill with "Zahlenfarm" and solve exercises in three different levels of difficulty in your head. Compare your skills with up to three members of your family or friends.


  • Cute graphics to motivate even your kids!
  • Three different levels of difficulty
  • Training mode to practice without time pressure!
  • Configurable avatars for each player!
  • A leaderboard (Defeat your daddy)!
  • Unlock badges by solving exercises!
  • Exercises out of all four basic arithmetic operation!