My number has 2 hundreds. the tens digit is 9 more than the ones digit my number is

290 because the two hundreds is the 2 in the hundreds place and then tens is 9 more than ones, so then the ones cant be anymore than 0 because if its 1 then there is 10 which adds to the hundreds making it 300 so the ones has to be 0 and then 9 more so 9