20 15 Anhui senior high school entrance examination mathematics is very difficult because of the difficulty of the questions and exams.

1, Question Difficulty: 20 15 In the Anhui senior high school entrance examination paper, there may be some difficult questions, such as those requiring multi-step calculation or complicated mathematical knowledge, which makes the whole paper more difficult.

2. Test difficulty: The knowledge points examined in the test questions are more difficult, such as the knowledge points related to mathematics in senior one, while the candidates in the senior high school entrance examination generally only learn the knowledge points of junior high school mathematics, so it is more difficult.