Fail. You didn’t show your work.
He’s no Gunter Zoolof
10598 / 260.9047619047619 = 42
I took high school pre-calculus with a guy who never showed his work. It was a matter of pride with him.
I garnered multiple math awards, and was voted Most Intelligent, but I could not do it all in my head.
I excelled in physics and other courses, unlike him, but his mental math skills were impressive.
This was a private Christian school with small elective classes; there was no concern about cheating. Everyone, including the teacher, knew the guy did it all then and there.
It did mean he could not get any partial credit - but he never needed partial credit.