Guess My Number

I am taking algebra 2 this year with Miss Pettit. We were assigned to make up our own number guessing game. Don't assume it is going to be hard and boring, because once you find the pattern and figure out how it works it is fun and enjoyable to do. My rules are. . . . . . . . 1) pick a number 2) add 4 3) multiply by 2 4) subtract 4 5) divide by 2 6) subtract original number SOLUTION: always end up with 2