176
There are 6484 digits BETWEEN the two given numbers.
223
There are 61328 of them.
I believe here are 51 such numbers.
90. all the numbers from 10 through 99
I think its more then 20
Only one. 123456.
19 do.
Twenty of them from 9 to 99
There are 6484 digits BETWEEN the two given numbers.
223
123
The sum of the number of digits in all the numbers between 31 and 400 inclusive is 1041.
There are 61328 of them.
I believe here are 51 such numbers.
180
There are 167960 9 digits combinations between numbers 1 and 20.