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'Your Number Is...' printed from

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Press the start button and see what happens:

This text is usually replaced by the Flash movie.

Now try again starting with a different number.

Try again.

Try starting with a fraction.. or decimal... or negative number...

Why is the answer ALWAYS the same?

Can you design instructions for similar machines of your own?
You may want to take a look at  Your Number Was... for a suitable follow-up activity.