Make 1 from a Pandgital

Insert
the symbols plus (+) and
minus (-) in any combination between
the digits of the number
123456789 so that the total is
exactly just 1. Example: 1-2+3+4-5-6+7+8-9 = 1. |

I have found 12 different ways to do this. Can you find them all? Can you find any others? |

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Last Updated: January 21st, 2010.