PREPARATION:
Have pencil and envelope ready. In front of an audience, secretly
write down the number 1089 on a piece of paper and seal it in
an envelope.
THE
TRICK:
1. Ask a volunteer to write down a number containing
three different digits. (example: 378).
2.
Next, tell the volunteer to reverse this number and subtract
the smaller from the larger.
3.
Now ask the volunteer to reverse the total from step 2 and add
the numbers together. This number will add up to 1089.
Have
your volunteer read the prediction. It's an odd fact that the
number will always be 1,089, regardless of what three digit
number was used.
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