I say that midterms, and finals for that matter, are difficult yet easy for the following reason: These types of assessments require long term memory(the bad news) yet generally do not require the same depth of understanding(the good news). These tests are usually weighted more heavily than regular tests so this creates an opportunity to really boost your grade.Generally, the central concepts are focused on so if you understand the basic types of problems from each section you stand to do very well. Go back and focus on the material you covered at the beginning of the semester as those are the problems that are least fresh in your mind and review toward the more recent chapters. Circle or write down the problems or concepts you don't understand and enlist the help of your teacher, online resources like YouTube, or a math tutor. Good luck on your test!
Helping students succeed in math for over 15 years. Individualized attention makes the difference!