Fibonacci Numbers Game

This game allows you to improve your mental math skills by calculating Fibonacci sequences/numbers. Starting with either 1 and 1, or two small random numbers, you have to choose the correct next Fibonacci number out of 16 possible answers. You can do this in endless mode, trying to maximize your score, or in target mode, trying to reach a score of 10, 20, 30 or 40 as fast as possible. I recommend downloading the game on Google Play.