There are 11 of them: 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99.
There are 30 multiples of 30 between 100 and 999.
There are 30 multiples of 30 that fall between 100 and 1,000.
They are all multiples of 1.
100 of them.
14
They are: 72 78 84 90 and 96 which makes five of them
498
14
110.
Nine
11
297