Magic+tricks!

There is a trick where you always get the answer 1089...
This can be started by perhaps writing down the number 1089 and hiding it, telling the kids that you are "psychic". A number line from 0 to 9 is written on the board. 3 DIFFERENT numbers are chosen and the pupils will be told to reverse the 3 digit number and SUBTRACT it from the original. This would be done WITHOUT a calculator so it should be made clear that the smaller of the numbers should be subtracted from the larger, eg:

965 - 569 and NOT 569 - 965.

The next step is to take the answer, reverse that and ADD it to the first answer. If done correctly, the answer will always be 1089!

Guess Your Birthday!
There is a trick, shown at the beginning of the Teachers TV video, where a birthday is encoded into a number which is easily unscrmbled to allow the teacher (using the magic) to tell the pupil what their birthday is