MatheMax is an entertaining and varied program for practicing basic arithmetic operations. The calculation method is preselectable, including simple counting exercises, addition with symbols, addition/subtraction with different number ranges, and multiplication/division with defined factors as well as mixed mode. One can thus train various learning skills. Optional logfile for tracking learning results. A solution button shows the correct result. Feedback takes the form of a congratulatory graphic and sound. Multilingual version: German, English, Swedish, Italian. Spanish, French, Norwegian.