The common questions in junior high school mathematics competitions are: fill-in-the-blank questions, multiple-choice questions, calculation questions, proof questions, application questions, etc. Among them, the fill-in-the-blank question is a kind of question that examines the examinee's mastery of knowledge points, with emphasis on the examinee's formula writing and reasonable calculation process; Multiple-choice question is a kind of question that examines the examinee's mastery of knowledge points, focusing on the examinee's understanding and application of knowledge points; Calculation problem is a kind of question that examines the calculation ability of candidates, focusing on the calculation process and results of candidates; The proof question is a kind of question to examine the examinee's proof ability, with the emphasis on examining the examinee's proof process and conclusion; Application problem is a kind of question that examines the ability of candidates to solve practical problems by comprehensively applying what they have learned, with emphasis on the application process and methods of candidates.