Seriously a great app – Mathemagics: Mental Math Review

It's addicting and at the same time teaches me both tricks and novel ways of thinking with math. I'm around numbers all the time at work and school, so the challenges and secrets of math this app reveals is priceless to me. Yes, I'm a huge fan and I play this on the train and before I go to sleep at night.
Review by Hdbdjdjdgchdjdjdhx on Mathemagics: Mental Math.