The four basics refer to the basic knowledge, skills, thoughts and activities of mathematics. The four abilities refer to the ability to find, ask, analyze and solve problems. The relationship between them and core literacy is that basic knowledge focuses on understanding and mastering, basic skills focus on understanding and using, basic ideas focus on experience and sentiment, and basic activity experience focuses on practice and accumulation. Basic knowledge refers to the basic knowledge points in teaching materials, including concepts, properties, laws, formulas, axioms and theorems in mathematics.