I'm getting pretty discouraged because I'm a straight A engineering student, but this semester I'm getting bad grades because I'm plugging things into my calculator wrong. I study a ton, and I definitely know the material, I just plug things into my calculator wrong and get the wrong answer. In my deforms class, we have one problem quizzes that are timed, and pretty much everyone struggles to even get the problem done in the given time. My professor said that he purposely gives us less time than we need to challenge us, so I don't have enough time to check my work because I'm literally rushing to finish a deform problem in 10 mins. This always results in me entering something into my calculator wrong, and getting the wrong answer. Most of my classmates don't have this problem, but I have always had it. Normally, my teachers see the mistake and only take off a few points as long as it's obvious that I knew what I was doing, but not this professor. I really don't know what to do lol, it's frustrating when you know the material, 99% of the work is correct, and you end up getting a 70 because the final answer is wrong.