I thought this was a fairly common thing to do?
Scenario:
Your students take an exam, there are a few questions almost everyone misses and you decide that those questions are too difficult or confusing, so you want to "sort of" throw them out.
But you don't want to penalize any students who got the question right.
So you make the question worth 0 points, and the student who answered correctly still gets their point, but now the exam for everyone should be graded as being worth fewer points. So it bumps everyone up a bit, and bumps the student with the correct answer up even more (as if they got extra credit).
I tried to do this, but now there are no student scores showing up for me at all, and Speedgrader is telling me I need to "regrade" the exam, but I don't know how to do that and I cannot find any information on this site about how to do it unless you are using "New Quizzes" (which I'm not).
Any tips on this?