اشتباه و کسر نمره

Question

جواب سوال رو اشتباه نوشتم استاد ازم نمره کم کرد 

یا مثلا از امتحان درومدی میگی جواب اون سوال چی بود ؟

بعد میگی وای اشتباه نوشتم نمره ام رفت

Answer 1

I wrote the wrong answer to the problem/question

The professor deducted/subtracted some points from my grade.

 

What was the answer to that question?

Oh! I made a mistake! I lost my point(s) for that question

Or

I lost that question's point(s).