200 should be allowed as answer I feel
I completely agree. "2" is recognized, "20" is recognized, "200" should be also.
In my opinion that would not be correct because you have the fully written number. Therefore the correct translation is also a written number.
It accepts the '2' but not the '00' - and for the other numbers it accepts the numerical form. So your opinion is fine.... but either completely or not at all, not a mixture :)
Is it so that in normal speech it sounds like "doo sute"? I don't hear any "ua")