Mathboard is an interesting app that combines a multiple choice environment with simple blackboard based calculations. The app focuses on basic arithmetic, but features a degree of customisation options, including some simple algebra. The app is presented as an old-fashioned Read more ›


Wolfram|Alpha introduces a fundamentally new way to get knowledge and answers— not by searching the web, but by doing dynamic computations based on a vast collection of built-in data, algorithms, and methods. You can use Wolfram|Alpha like a search engine, Read more ›