1, first check from the back of the solution, mainly look at the steps of each step, in the case of calculation without errors, the steps are complete.

2. Next, check the multiple-choice questions of the test concept. This is a multiple-choice question that should not lose points. Be sure to be accurate.

3, combined with the calculation records on the draft paper, check the multiple-choice questions and fill-in-the-blank questions.

For some questions that you are not sure about, you should check more and watch every step carefully.