You don't get too many chances to do this trick among your friends but just once will have the bunnies scratching their ears in wonder.
Write the number 1089 on a piece of paper, fold it and seal it in an envelope.
Keep the sealed envelope handy ready for when you meet your bunny.
When you are ready to do the trick hand your target the envelope and ask him/her to hold it without opening it saying that it is a prediction of a sum based on any three digit number offered.
- Write the three digit number offered on a piece of paper.
- Write down the reverse of the number (Say the original number is 123 the reverse, of course, is 321)
- Subtract the smaller number from the larger one (321 - 123) and write down the total
- Write down the reverse of the total
- Add both together (198 + 891) writing down the total
- Ask your bunny to open the envelope and 'Presto!'