Mente Matemática - Tablas

Mind Mathematics - Tables is an application that improves the speed with which mathematical operations are resolved mentally. Of course, one must know the procedure, but operations can be made out mentally, even faster than using calculator.

It is common during an exam time runs out before you have solved all the mathematical exercises, even if the procedures are known, mostly because no one has enough mental agility to perform calculations quickly.

Use the application for a week and see for yourself.