Hi,
In my textbook there are the following two sentences:
a) Трём тысячам американцев (to 3,000 Americans)
b) Трём тысячам трёмстам американцам (to 3,300 Americans)
The first sentence (a) makes grammatical sense to me: The number is in the dative, and американцев is fine because nouns and adjectives that follow the words тысяча, миллион, миллиард and биллион are always in the genitive.
The second sentence (b) seems to be inconsistent with the rule underlined above. Why is американцам dative? Why is it not genitive like in the first sentence?
Many thanks