The "Four Fours" Game

Here's an interesting game for older kids. Play it on car trips, in a restaurant while waiting for your food, and so on.

To play this game, try to make the numbers from 0 to 20 (and beyond, if possible) using exactly 4 fours and any math operations that you can think of.

Math operations are things like plus, minus, multiply, divide, square root, to the power of, and so on.

The examples on the right demonstrate some ways of making 0 using exactly 4 fours.

Remember, you can only use the number 4, and you must always use 4 of the number 4 (no more, no less).

We've given you some ideas for making 0, can you make the numbers from 1 to 20 and beyond? It's tricky!