Devi wrote a number of books with titles like Fun with Numbers and Puzzles to Puzzle You.

BBC: Obituary: India's 'human computer' Shakuntala Devi

It also features top-rated learning apps that children will have fun with as they learn their numbers, letters and much more.

ENGADGET: Polaroid announces 7-inch kids tablet sporting Android 4.0, looks to show it off at CES