There are 10% math questions in the senior high school entrance examination, which students can't answer because of the difficulty of 0.65. The proportion of easy questions, intermediate questions and difficult questions is about 7:2: 1, and the difficulty coefficient is about 0.65. If you mean the difficulty level of the whole math test paper, the specific situation of the question rate will vary according to the region and year. Generally speaking, the proportion of difficult items in the senior high school entrance examination paper is relatively low, because the overall goal of the paper is to examine students' mastery of basic mathematics knowledge and problem-solving methods. Official website inquired about education and learned that 10% of the questions in the senior high school entrance examination were difficult to answer.