Math Ninja

Educational platform-er game, where the player is a ninja or ninja girl which encounters enemies which ask mathematical questions.
It designed so that young children with basic knowledge (1 to 9) can also play.
(The difficulty of the equations is adjustable. With a minimum of 9 and maximum of 100 as top limit for results.)
This way it motivates them to discover the levels and exercise they knowledge of fundamental math.
So far, the kids can count apples, or do additions and substractions. By answering the right answer, they defeat the enemies.