There are 90 such numbers.
There are 90 two-digit numbers... starting with 10 and ending with 99.
90
90
90
There are 90 such numbers.
There are 90 two-digit numbers... starting with 10 and ending with 99.
90
90
90
90
90
9
90
there are no 3 digit tis two digit! :) * * * * * 90 of them.
90 of them.
80