Fifteen is a straightforward and addictive math game designed to help you get better at multiplying, dividing, adding, and subtracting in your head.

The idea is simple: correctly answer FIFTEEN math problems in SIXTY seconds, and you'll advance to the next level. With each new level, the problems become slightly more difficult, allowing you to gradually solve more complex computations over time.

To help motivate, you will unlock cool trophies for accomplishing certain feats. Your collection of trophies is displayed in the in-game trophy room for your viewing pleasure.