I didn't list all the steps in the way they wanted the work shown. I showed the parts that allowed me to formulate the answer in a way that worked, but that was declared "insufficient."

So giving an answer with partial work for the written section, in combination with my high score on the scantron = cheating, I guess?

As you might surmise, the teacher was absolute shit, in retrospect.

The Principal too, since he cosigned her demand that I retake the exam twice, including while in the Principal's office, while he lurked about.

Makes my blood boil even now.