The Problem...
1. Pick a 3 or 4 digit number, not all the same digits.2. Jumble up the numbers. 3. Subtract the smallest number from the largest. 4. Draw a circle around one of the numbers (it can't be a zero). 5. Jumble up all the non-circled numbers; write down the result. 6. The mind reader can tell you what the circled number is. | |

Do it on line. |
Solution |