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January 30, 2015

January 30, 2015

Posted by **Michael** on Monday, March 29, 2010 at 12:44am.

repetitions are not allowed?

- Math for Elementary Teachers II -
**drwls**, Monday, March 29, 2010 at 1:58amrepetitions allowed: 5^4 = 625

no repetions allowed: 5x4x3x2= 120

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