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Would you like to improve your mental math skills? Would you like to learn how to solve difficult math problems with ease and impress yourself and your friends with your math skills? With this app you will not only train your brain by solving math problems, you will also learn special mental math tricks.For many math problems, special tricks exist that make solving these much easier. It is important to know when to use which trick, but also how to solve a math problem if none of these special tricks can be used.This lite version contains 5 lessons where you will learn the following tricks:-Method of complements-Multiplication of numbers between 11 - 19-Multiplication of numbers between 91 - 99-Divisibility by 2, 5 and 10-Squaring numbers ending with 5-Squaring numbers between 50 to 59-Calculate the weekday for any dateIn the second part of this app, the training, you can solve random math problems with increasing difficulty. The goal here is not only to become better and faster at solving math problems, you will also learn to detect which trick would be the best for the current math problem. This is why there is a help button in the training-section. If you push this button, the application will search for the trick or tip that is possibly the easiest for solving the current math problem.Additional features:-Two languages: All texts are in english and german.-Two different GUI-designs: Use a blue background with white text in sci-fi movie style. Or switch to a simple white paper background with black text.