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What are the four fields of mathematics?
Numbers and algebra, graphics and geometry, statistics and probability, synthesis and practice.

1, number and algebra: it involves the cognition, representation, size comparison, operation and quantity estimation of numbers. In addition, algebra also studies abstract concepts such as mathematical symbols and mathematical structures, and the relationship between these concepts and operational rules.

2. Graphics and geometry: study the basic graphics of space and plane, the nature and classification of graphics, the translation, rotation and axisymmetric transformation of graphics. Geometry also involves basic concepts such as points, lines, surfaces and bodies, as well as their measurement relations and properties.

3. Statistics and probability: study the collection, collation, description and processing of data, and make inferences and predictions based on the data. Probability theory studies the mathematical laws of random phenomena and provides scientific basis for decision-making.

4. Synthesis and practice: it is a learning activity with problems as the carrier and students actively participating, and it is an important way to help students accumulate experience in mathematics activities. Through practical activities, students can apply their mathematical knowledge to real life and solve practical problems. These four fields involve different mathematical concepts and methods, and they are also interrelated. In the study and research of mathematics, these four fields are very important. They are isomorphic and constitute a complete mathematical system.