Not many people know this, because I just made it up, but when Alexander Graham Bell made the first telephone call, to his assistant, Thomas Watson, and said, "Watson, come here, I want you," he heard a voice on the other end say, "This isn't Watson. You have the wrong number."
Numbers are falling from the sky, and you have to destroy them before they hit the floor. You can remove numbers by selecting them with your mouse so that the sum of the selected numbers equals 10. There are also special helps such as bombs and clocks to slow down time. So count quickly and win the game now!