Mathemagics: Mental Math

I love these clever math tricks. I knew a few of these, but the app has so many. I enjoy playing and practicing. I’d rather pass the time using this app than playing all the stupid game apps. Please continue to add more n keep up the excellent work.

One ask: I wish the "play" selected categories were persistent. I.e. The ones you selected the last time you played are selected them next time you played. Update: Reiterating this one year later. Still love the app, but I would use it regularly if I could “set” which Play categories I wanted and they would stay set every time I opened the app

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.