This game can also be used for teaching children mathematics. The game mechanics are simple, but playing it is harder than you think! A numerical expression will appear on the screen and you will have a limited time to select whether it is solved correctly or incorrectly. Each correct answer gives you one point, and your final score will be based on the number of correct answers. You lose if you choose the wrong answer or if the time runs out! As mentioned earlier, the game seems easy at first, but it gets harder and harder with every level.