Effect description

The
Magician steps away from the PC and asks an audience member to fully
examine the windows calculator. Once he is convinced that it works
properly, the Magician gives him a sealed envelope containing a
prediction that will then be used to cover the calculations on the
computer screen. The Magician then tells the spectator to do his own
mathematical equation, using any random numbers. When the spectator
decides he has finished, he presses the enter key to get the result,
which he will find is equal to the prediction.

This effect can be done on any PC that has a Microsoft Windows Operating System (version 95, 98, NT, 2000, or XP)

Important points

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