"How many yesterday? Nineteen."

Translation: Cia mheud an-dè? Naoi deug.

[EAber1]

hello, cia vs co mheud? Any difference?

[silmeth]

Yes, in writing and pronunciation. Not in the meaning – they are interchangeable.

That’s mentioned in the notes to the Numbers skills.

You can access the notes on the web browser version of Duolingo at https://duolingo.com (unfortunately not in the mobile app though), you can also read them at https://duome.eu/tips/en/gd.

[EAber1]

Tapadh leibh!