i found a way to get out of speaking in my zoom class

i found a way to get out of speaking in my zoom class in my algebra class, our teacher calls on us randomly to read and answer questions (worst thing ever), so i disabled my internal microphone on my laptop so whenever i join zoom calls it tells me that no microphones are detected. i now get to type answers in the chat and i don’t have to tense up and get anxious before she calls on every person.