Question 1200678:  How many three-digit numbers can be formed using the digits 1, 2, 3, 4, 5, 6, 7, 8, 9 without repetition?  
 Answer by Alan3354(69443)      (Show Source): 
You can  put this solution on YOUR website! How many three-digit numbers can be formed using the digits 1, 2, 3, 4, 5, 6, 7, 8, 9 without repetition?  
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The 1st choice is 1 of 9. 
Then 1 or 8. 
Then 1 of 7. 
9*8*7 = 504 
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