The Persistent Number 9

Name: _____________________ Date_____________

Steps	Example
1. Take any number	1492
2. Add the digits	1 + 4 + 9 +2 = 16
3.Subtract the sum from the number you chose.	1492 - 16 = 1476
4.The number you received in step 3 can always be divided by 9 without a remainder.	1476 divided by 9

Try this trick with numbers of your choice. Now try this trick on a friend. Say " You may select any number that you like. Then if you do as I say, I will tell you the answer."