How to become better at Math 7?
So on Math 7 homework, everything usually makes sense (right now I am doing Arithmetic Properties btw). But, when it comes to tests, my teacher makes us explain why we are doing the problems and how. Every test so far, I have gotten NM (no marks). It is usually because I didn't explain how he wanted me to. So, for this test, I want to be prepared or I have to go to this building which gets help for kids who need help in math. I don't need help in math, because I understand the homework, I would just like some advice on how to understand math, and better prepare for math tests. PLEASE HELP.