If the math problem in junior high school is 130, it means that 78% pass, 104% is excellent, and 88% is lower-middle grade, so this score is not ideal for junior high school students.

Mathematics is a universal means for human beings to strictly describe the abstract structure and mode of things, and can be applied to any problem in the real world. All mathematical objects are artificially defined in essence. In this sense, mathematics belongs to formal science, not natural science. Different mathematicians and philosophers have a series of views on the exact scope and definition of mathematics.