Keeps me sharp I use it a part of my 'brain training' regiment. Works very nicely.
This is great I will utilize this website like hotcakes because it is really awesome it is really wonderful I wish the people that invented this game could come up with another game that explains how you solve the problem in a couple of different ways and make it a free game
Great ap Horizontal would definitely be easier.
Nice but... Horizontal calculation improves the mental calculation but here the format is in vertical
No thanks Wants me to sign up, no thanks. It's multiple choice, that not how his math tests are in school. Initial interface is confusing, this must have been designed by an engineer lol!.
Math Excellent for small children to learn math
►1/2014: New estimation pack is added where you can estimate operations with big numbers
►12/2013: In first four levels, numbers are aligned right for easy mental calculations
►11/2013: New cash reward program (free) for younger brains
►10/2013: App is optimized for tablets and many UI enhancements