Speed Math Trainer – Amazon Appstore for Android – Free app of the day

Ready, set, fingers go! Test your basic math skills in less than one minute. Choose either from addition and subtraction or multiplication problems. The more you exercise your mental calculation skills, the better your results will be. Results are tracked to allow you to visualize your progress in graph form!

Get it here
http://www.amazon.com/mobile-apps/b/ref=topnav_storetab_mas?ie=UTF8&node=2350149011
http://www.amazon.com/gp/product/B007TBYU18?ie=UTF8&ref=mas_faad