King of Math
King of Math is a game-like mental math trainer for Android.
It includes the categories...
» Powers & Roots
» Average & Median
» Smallest & Largest
.. and several more (will be added).
It is available in the following languages
- English (US & UK)
And the best: It's free!
I suggest looking at the Google Play App description and the screenshots, they'll tell you very detailed what you want to know.
Get King of Math on the Google Play Store.
Join the King of Math Facebook group
Let me hear some feedback!