This application will provide you a lot of computes that will lead you to the highest level of mental arithmetic. You have additions, substractions, multiplications and divisions to practice and make your brain bigger and bigger. You can choose among 6 modes : survival, 10 tries, 50 tries, 2 minutes, sudden death or no limit mode. You can know you rates of good answers at any times while playing, and you can easily share them with your friends ! Have fun ! New : Now you have several awards if you succeed in : - finding more than 50 good answers in 2 minutes mode - finding more than 100 good answers in 2 minutes mode - finding more than 100 good answers in no limit mode - finding more than 50 good answers in sudden death mode - making 10/10 in less than 30 seconds - making 50/50 in 50 tries mode - finding more than 500 good answers in sudden death mode - finding more than 1000 good answers in no limit mode And soon harder achievements that will make you crazy...