Mathematics 1 is mainly suitable for science and engineering, mathematics 2 is suitable for agriculture, forestry, geology, mining, petroleum and other majors, and mathematics 3 is suitable for economic management.

Math 1 and Math 3 will take advanced mathematics, linear algebra, probability theory and mathematical statistics, while Math 2 will only take advanced mathematics and linear algebra. So Math 2 is the simplest, Math 1 and Math 3 are more difficult, Math 1 is slightly more difficult than Math 3, Math 1 is the most difficult, and Math 3' s probability statistics is the most difficult.