"Saya punya lima ekor kucing."

Translation: I have five cats.

[tsuj1g1r1]

I do believe we've counted things during the course without resorting to classifiers. Are they optional, are they only used in a specific context, or am I remembering the course all wrong?

[Rick392366]

You can omit the classifier, it's optional and it's used to make it more formal.