【實用教育app】Mental Math Flash|最夯免費app-綠色工廠好玩App

Mental Math Flash - Master basic Mental Math skills through quick paced flash card-like exercises. Master addition, subtraction, multiplication and division of single digit numbers. PLUS master complements (adding to 100), negative numbers, least common multiples and greatest common factors. Everything you need to do mentally in order to move forward into higher level math! All you need to do is practice! Mental Math Flash generates random problems and keeps track of your performance.