I just saw the infomercial and find it very intriguing. I would like to hear if anyone has used it?
Also would like anyone sharing his experience.
Nevertheless will searching about Brainetics I came across this page (wildaboutmath.com) that takes you to examples for doing mental math.
http://wildaboutmath.com/2008/01/17/how-fast-can-you-do-mental-math/I found very interesting the one of: how-to-square-large-numbers-quickly
I hope you like math as i do. This is for younger kids but nice to know those methods.