1, Numbers and Algebra

Numbers and algebra mainly include reading and writing methods of numbers (integers, decimals, fractions), rewriting of numbers (turning them into numbers in tens or hundreds of millions, seeking divisors, etc. ), and compare the sizes of numbers (compare the sizes of integers, decimals and fractions).

Four operations (calculation rules, operation sequence, algorithm, etc.). ), quantity measurement (quality, length, area, time, volume (volume), RMB, etc. And conversion between units).

2, geometry and graphics

Geometry and graphics include understanding graphics (the name of graphics, the names of various parts, characteristics, properties, the relationship between graphics, etc. ), observe objects, calculate the area of plane graphics, the surface area and volume of three-dimensional graphics, the movement (translation and rotation), position and direction of graphics, and so on.

3. Statistics and probability

Statistics and probability mainly include: statistical tables and charts (bar lines, sectors, broken lines, etc.). ) average mode, probability and so on.