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four digit numbers

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Four digit numbers from 0, 1, 2 and 3 2018-11-30
A parent pose la question :
how many four digit numbers can be formed using nos.0,1,2,3 if repetition is allowed?
Penny Nom lui répond.
Four digit numbers 2016-09-08
ning pose la question :
0000-9999 there is ten thousand 4-digit numbers. How to find the number of ways that 4 digit are the same? How to prove it by using formula?
Penny Nom lui répond.
Some 4 digit numbers 2012-10-25
samira pose la question :
How many 4-digit numbers are there in which the first and last digits are the same?
Penny Nom lui répond.
Four digit numbers 2010-05-22
tyeisha pose la question :
Whats all the four digit numbers you can come up with using numbers 0-9
Tyler Wood lui répond.
Four digit numbers with no repeats 2010-01-02
Daniel pose la question :
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!
Penny Nom lui répond.
Four-digit numbers 2009-04-11
jp pose la question :
How many four-digit numbers are there?
Penny Nom lui répond.
Four digit numbers containing 85 2008-02-06
Vonda pose la question :
How many four digit numbers contain the digit pattern 85 at least once and only once?
Stephen La Rocque lui répond.
Four digit odd numbers 2007-09-26
sonia pose la question :
how many 4 digit odd numbers can be made using the digits 2, 5, 7, and 8
Penny Nom lui répond.
Four digit numbers 2007-07-30
Spence pose la question :
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: ??

Penny Nom lui répond.
Four digit numbers 2007-02-26
Anton pose la question :
Hello! I would like to ask you how many combinations are possible using 4 digit number. # # # # (1...9).There is no zero,numbers don't repeat,second and forth are odd.Thanks
Penny Nom lui répond.
Four digit combinations 2006-10-26
Sasha pose la question :
CAN YOU LIST ALL OF THE POSSIBLE 4 DIGIT COMBINATION'S, THAT DO NOT START WITH 0?
Stephen La Rocque lui répond.
Four digit numbers 2003-11-20
Rob pose la question :
Hello, I sure hope you can answer this question. I got into a discussion at work about how many possible combinations there are for a four digit number using the numbers 0 through 9. This was in reference to a discussion about the lottery. I said there was only 10,000 possible combinations. My friend said that there was many times more, but he could not remember how to figure it out. The answer and the formula would be greatly appreciated.
Penny Nom lui répond.
Four digit numbers from 1,2,3,4,5,6,7,8 2001-05-31
Katie pose la question :
Okay.......here's my question...how many different ways can you form a four digit number out of these digits..1,2,3,4,5,6,7,8? This is how my teacher said to do this.... 8*8, 7*7,6*6,5*5,4*4,3*3,2*2,1*1. then she said to add up the products and to multiply by 7. is this correct, and if not how can you figure this out.
Penny Nom and Claude Tardif lui répond.
 
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