Sound a bit inconsistent - why weren't 10 - 20 also changed? Would have been great to have a language that's consistent all the way through as far as counting is concerned :)
I have nowhere enough knowledge in linguistics to properly explain this, but numbers between 10 and 20 have their own unique pronouncement which sound quite incorrect if inverted. Not too different from English, 10,11,12 have their own endings, while 13 to 19 end with a "ten" - similar to the English "teen". But saying "three-and-ten","four-and-ten" etc. doesn't sound right at all, in our language.
It's after this that you get "twenty-one, twenty-two, ... " and up to "ninety-nine" - which can also be pronounced "one-and-twenty, two-and-twenty, ..." up to "nine-and-ninety".
I wish we just said 'ten-four' etc. instead of 'fourteen' which sounds almost exactly like 'fourty'. Especially over the phone someone could easily mistake one for the other
