How many numbers have 1 digit?

Well, there are 9 numbers(1-9) with 1 digit. 90 numbers are of 2 digits(10-99), and 1 number, i. e., 100, is of 3 digits.
For More Information Please Refer:
https://www.quora.com/If-you-write-the-numbers-from-1-to-100-how-many-digits-will-you-have-written
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