Poor mid-term grades

Hi,

I recently recently received my midterms and got two D’s and a C. It is strange cause on all of quizzes and homework I got A’s on. I study and felt like I knew all the material. I don’t get nervous and Aced all of the review assignments. I don’t what I am doing wrong. Please help.

What subjects are you studying? Looking at the tests, what kind of mistakes did you make?