"Ten parents are at the zoo."
Translation:Tá deichniúr tuismitheoirí ag an zú.
Shouldn’t the singular form of the noun go with this number, viz deichniúr tuismitheoir rather than deichniúr tuismitheoirí?
EDIT: As was helpfully pointed out to me, it’s not the singular form that should be used here, but the genitive plural form.
It applies to all of the personal numbers (2 through 10 inclusive, and 12). In the case of 2, the governed noun is lenited.