Do you ever wonder being so good at memorizing your do not grasp the material well soemtimes but are able to remember the answers?

I mean because I have taken tests and done fairly well aside from math since it math was always hard for me. But when I take tests. Its like. All I am doing is remembering the answer, but if you ask me the reasons around why I chose the answer, I really cannot supply any facts to back up why. Its like I know the answer but I don't.

I mean in the class I just took recently for job training which will stay nameless. I have taken tests in it but sometimes our teacher will give us the the test before we have studied it as way to boost our confidence she would say. So we could see after after the difference in our scores after we studied. One test that stuck out to me I took. I got a 70 ish percent the first time. But the second time I got 97% on it. We did go over it in class after we were done. But after we went through it was like I remembered which bubbles to fill in on the next test. All the people were like wow you must of studied hard. It makes me feel awkward when I get stuck in situations like that and i want to jump out a window and run away because I did not study for the test in fact. Because all the answers I knew. I knew the words but I did not know any other information really that correlated to it. Just the answer so I could pass the test.