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Finger Math: How Many...
#871599
03/03/13 10:19 AM
03/03/13 10:19 AM
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Joined: Apr 2005
Posts: 37,574 Alabama
soot
OP
Puzzled Moderator
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OP
Puzzled Moderator
Sonic Boomer
Joined: Apr 2005
Posts: 37,574
Alabama
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How many different ten-digit numbers, such as 7,829,034,651 can be written by using all ten digits?
Last edited by soot; 03/04/13 08:05 PM.
Dan ... To learn, read...To know, write...To master, teach...To live, play games & listen to whale music Stay Smart & Stay Safe
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Re: Finger Math: How Many...
[Re: soot]
#871604
03/03/13 10:58 AM
03/03/13 10:58 AM
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Joined: Jul 2002
Posts: 28,972 Unionville
manxman
Sonic Boomer
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Sonic Boomer
Joined: Jul 2002
Posts: 28,972
Unionville
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3,265,920 (by counting on my fingers)
Sometimes lost is where you need to be. Just because you don't know your direction doesn't mean you don't have one.
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Re: Finger Math: How Many...
[Re: soot]
#871913
03/04/13 08:39 PM
03/04/13 08:39 PM
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Joined: Jul 2002
Posts: 28,972 Unionville
manxman
Sonic Boomer
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Sonic Boomer
Joined: Jul 2002
Posts: 28,972
Unionville
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arrived at multiplying 9*9*8*7*6*5*4*3*2*1 which is 9*9!
Sometimes lost is where you need to be. Just because you don't know your direction doesn't mean you don't have one.
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