The answer is 498 digits (you're not suppose to count 1 and 500) if this question was intended to ask "how many numbers are there between 1 and 500?"
Zero. Only the digits 5 and 0 appear in 500.
There are 60 such numbers.
To find the odd numbers between 1 and 500, we note that they range from 1 to 499. There are 250 odd numbers in this range. Typing each odd number requires the same number of keystrokes as the number of digits in the number, which is either 1 digit (for 1-9), 2 digits (for 11-99), or 3 digits (for 101-499). The total keystrokes can be calculated as follows: 9 (1-9) + 90 (11-99) + 399 (101-499) = 498 keystrokes.
25 digits
There are 5 numbers of 1 digit, 25 numbers of 2 digits, and 75 numbers of 3 digits. This makes 105 numbers in all.
1390
Zero. Only the digits 5 and 0 appear in 500.
There are 6484 digits BETWEEN the two given numbers.
1
There are 95 Prime #'s between 1 and 500
223
There are 60 such numbers.
501
To find the odd numbers between 1 and 500, we note that they range from 1 to 499. There are 250 odd numbers in this range. Typing each odd number requires the same number of keystrokes as the number of digits in the number, which is either 1 digit (for 1-9), 2 digits (for 11-99), or 3 digits (for 101-499). The total keystrokes can be calculated as follows: 9 (1-9) + 90 (11-99) + 399 (101-499) = 498 keystrokes.
25 digits
There are 167960 9 digits combinations between numbers 1 and 20.
There are 232 numbers between 1 and 500 that are divisible by 3 or 5.