You can select 9 numbers for the first digit, 8 numbers for the second digit, and 7numbers for the third digit; so 504 (e.g. 9*8*7) different three digit numbers can be written using the digits 1 through 9.
64 different whole numbers can be written with 6 bits.
60
89,999 different numbers i guess
There are only five distinct odd digits.
Different schemes have different id numbers of different lengths.
36
the numbers 0 through 9 written in sequence or any portion of that sequence
10,000
64 different whole numbers can be written with 6 bits.
60
Spell_out_whole_numbers
8 to the 5th power
89,999 different numbers i guess
5 x 10 x 5 = 250 different numbers, assuming there is no limit to each digits' use.
A positive number is greater than a negative number. If both numbers are positive, the longer number - the one with more digits - is larger. If both have the same number of digits, compare the digits from the left, one at a time until you find one that is different. The one with the larger digit in this last comparison is the larger number.
There are 7,290 different 4-digit numbers that can be formed from the digits 1-9 without repetition.
Almost got me on this one. 20 numbers but 29 digits