As far as difficulty is concerned, the absolute difficulty of SAT II mathematics is far less than that of domestic high school courses. The following knowledge points are not involved in the high school mathematics curriculum, so you need to prepare for the exam carefully. Find the asymptote of fractional function, a part of round table probability model in probability theory, simple matrix in linear algebra, zero point of polynomial function. The rest of the knowledge points are involved in the domestic high school curriculum. As long as you have taken the SAT I math test, you can recite about 20 math terms (asymptote, parabola, focus, etc.). ). Mathematics is relatively easy. It is suggested that Barron have enough preparation materials, and then do a set of OG questions to be familiar with the questions.