Beat the Calculator the smart way... Learn how to add, subtract, multiply and divide numbers in your head with ease: ABACUS/TheBasics makes you Think!

The program uses a smart method, which stimulates the user to do as many calculations as possible within short periods of time. Particularly with challenging settings, users are additionally stimulated to calculate tough equations, develop new strategies and see connections. As a side effect and 'without realizing it', many calculations are mentally done between just two mouse clicks.

A little competition or a reward can further improve ABACUS/TheBasics' effectiveness. Students, who find mental arithmetic a boring subject, become interested and advance quicker than with traditional methods. With some exercising and by taking advantage of the available Tips 'n Tricks, it becomes possible to solve tough challenges at school, home and the restaurant...