Topic: 4 digit numbers list of topics
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6 items are filed under this topic.

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	Four digit numbers with no repeats		2010-01-02
		From Daniel: I want to know how many different numbers there would be between the numbers 0000-9999 that do not have any numbers that duplicate or repeat in the number? For example the first number would have to be 0123 and the last would be 9876 (I think) Thanks! Answered by Penny Nom.
	Four-digit numbers		2009-04-11
		From jp: How many four-digit numbers are there? Answered by Penny Nom.
	Choosing a 4 digit number at random		2009-03-24
		From shabkhal: If a four-digit number is chosen at random, what is the probability that the product of the digits is 12. Answered by Harley Weston.
	Four digit combinations		2008-06-23
		From star: Can you you give me a list of all 4 digit combination starting with the number 7, for example 7123,7213. Answered by Penny Nom.
	Four digit odd numbers		2007-09-26
		From sonia: how many 4 digit odd numbers can be made using the digits 2, 5, 7, and 8 Answered by Penny Nom.
	Four digit numbers		2007-07-30
		From Spence: My son has a problem that he has been unable to figure out. I was asked to try, but I am confused on how to get the last two parts. Any help would be great. Thanks Spence How many four-digit numbers can be formed under each condition? A) The leading digit cannot be zero: 9(10)(10)(10)=9000 B) The leading digit cannot be zero and no repetition of digits allowed: 9(9)(8)(7)=4536 C) The leading difit cannot be zero and the number must be less than 5000: ?? D) The leading digit cannot be zero and the number must be even: ?? Answered by Penny Nom.

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