Find the Missing Numbers in each room. Earn 100 points for each number. The faster you locate the next number the higher the score! You will lose points when you click on the wrong spot. Earn time bonus at the end of each round. See if you can today's highscore!
A context menu should be shown when right-clicking or, on touch devices, long-pressing in the game. This menu especially allows to play in full screen and control the volume.