Operations: addition, subtraction, multiplication, division, equation, ratio, proportion.
Statistics: bar line, broken line, sector, statistical table
Others: probability, location, space, logical reasoning, drawer problem, measurement, unit length, law, law.
Number theory synthesis: prime number and composite number, divisor and multiple, divisibility of number, numeration system, odd number and even number, unit law, division with remainder.
Application questions: planting trees, profit and loss problem, trip, average value, concentration, cattle grazing, age,
Economic problems, chickens and rabbits in the same cage, sum difference, sum multiple, engineering problems, fraction percentage problems, difference multiple problems