Mental Math Challenge
Unsolicited redesign of this app developped by Franklin Schrans.
Why use a calculator for what your brain can do? Mental Math Challenge allows you to train yourself efficiently, with different levels of difficulty.
Concept and text are from Franklin Schrans. We love the app and just made a redesign proposal for fun.
“Without mathematics, there’s nothing you can do. Everything around you is mathematics. Everything around you is numbers.”
— Shakuntala Devi