Share the Q&A of 20 15 today. Amc8 is mainly aimed at the eighth grade math contest and the admitted students, and the minimum participants are only the fourth grade of primary school. Every day, Hou Ma uploads a real question and answer from the past years for the students to test and learn. Everyone exercises and improves their mathematical thinking in the test. Next, we will video explain the questions of the past years and post them on the platform for everyone to learn. I hope every student can get good grades in the competition.