Use WASD or the arrow keys to move. When you encounter a math equation, use the correct operation to solve it and reach the target number. Blue numbers add to your total, red numbers subtract, yellow numbers multiply, and green numbers divide. Some numbers can only be used once, indicated by their circular shape, while others can be used multiple times, indicated by their square shape. Step on the checkered flag once you reach the target number. If you get stuck or need to start over, press R to restart the level.