[nene]

What struck me most was having multiple-choice answers on a math test... WTF?

You shouldn't be able to just guess the answers one-out-of-four. When I was in school (not in US) there never was such a thing. You simply solve the problem and write an answer, which usually is a simple number.

[drblast]

One of the easiest ways to take a multiple choice math test is to work backward from the given answers. You hardly even have to know what you're doing; just plug the answers into the question.

I don't think any of my classmates or teachers ever figured that out. They just thought I was smart for finishing early with 100% correct. Which, in a way, I guess I was, but not the way they thought.

[ootachi]

"(E) None of the above" is an easy way to solve that problem and is commonly used on standardized tests.

[Natsu]

He said that he got 10 out of 60 right. Unlucky or not, I hope it was a choice of five or six to get a score like that.

[ootachi]

You can penalize guessing by subtracting a small fraction of a point for each missed problem (but not for those left blank). Easy to do, and with overwhelming statistical probability those who guess on everything will end up with a score close to zero.