Practicising mental arithmetic can sharpen up your thinking ability by making use of one of the most powerful computers in the world - i.e. the one between your ears! In order to become a Math Mind Wizard, it is recommended that this application is used as follows: ● Master the multiplication times tables ● Study the Mental Arithmetic Tips ● Practice the Training Exercises ● Take the Math Mind Challenge There are 12 levels in the Math Mind Challenge - each set of mental calculations contains