Practical ability. Mathematical operation exercises examine students' practical ability. Experiments and arithmetic experiments need to be explored, guessed and summarized on the basis of hands-on practice. On the one hand, this kind of question examines students' practical ability, on the other hand, it examines students' inquiry consciousness and innovative spirit, which is paid more and more attention in the senior high school entrance examination. Its main forms are multiple-choice questions, fill-in-the-blank questions and solution questions.