Third grade Qingdao version of the oral arithmetic problem card to buy 54. According to the relevant public information, it can be known that the 54-year primary school, the 4-year middle school, the 6-year primary school and the 3-year middle school in the 63-year primary school have unified nine-year compulsory education. For the third grade students in primary school, the 54-year edition allows them to remove the knowledge of junior high school in advance.