It depends upon the digit placement. 7 can have different values as follows:777First 7 = 700Second 7 = 70Third 7 = 7I found it elsewhere on the web - my 8 year old 3rd grader, her after school tutors and I couldn't figure it out so I googled it.
7 in 7152 represents 7000 but 7 in 3725 represents 700
Number of 7 digit combinations out of the 10 one-digit numbers = 120.
You have seven different digits (symbols) to choose from, so you can form seven different one digit numbers and 7×7=72=49 different two digit numbers.
56 combinations. :)
It depends upon the digit placement. 7 can have different values as follows:777First 7 = 700Second 7 = 70Third 7 = 7I found it elsewhere on the web - my 8 year old 3rd grader, her after school tutors and I couldn't figure it out so I googled it.
just because
7 in 7152 represents 7000 but 7 in 3725 represents 700
9999876
Number of 7 digit combinations out of the 10 one-digit numbers = 120.
You have 9 options for the first digit; whichever digit you choose you have 8 options for the second digit, 7 for the third digit, 6 for the fourth digit - so you have a total of 9 x 8 x 7 x 6 different combinations. Sure I could make a list, but that would be rather boring - and utterly useless as well.
> 9999876 Actually, 9999876 has four different digits (6, 7, 8, 9). The largest 7-digit number with three different digits is 9999987.
4: 4000, 6: 600, 7: 70, 8: 8. These are the values for each digit in 4678.
You have seven different digits (symbols) to choose from, so you can form seven different one digit numbers and 7×7=72=49 different two digit numbers.
1,000,000 or, if they need to be different, then 1,023,456.
The positional place values of digits in negative numbers are in ascending order from least to greatest as for example in the number -987 the least value digit is 9 and the greatest value digit is 7 because -900 < -80 < -7 The positional place values of digits in positive numbers are in descending order from greatest to least as for example in the number 987 the least value digit is 7 and the greatest value digit is 9 because 900 > 80 > 7
9876543