How do you get 9 by using four twos?

Oh, what a happy little question! To get 9 using four twos, you can simply add them together like this: 2 + 2 + 2 + 2 + 2 = 10. Then, take one of those twos away to make it 10 - 2 = 8. Finally, add the last two you took away to get 8 + 2 = 9. There you go, a beautiful little math problem solved!