Integer operation, fractional operation. Mathematics is an important subject, and it is also one of the subjects that primary school students must master. Mathematics in Grade One and Grade Two of Beijing Normal University requires integer operation and fractional operation.

1, integer operation. In primary school mathematics, integer operation is a very basic content. The concepts of integer addition, subtraction, multiplication and division, division with remainder, divisor and multiple are all knowledge points that primary school students must master.

2. Fractional operation. Fraction is one of the difficult knowledge points in primary school mathematics. Pupils need to master the definition, simplification, addition, subtraction, multiplication and division of scores. At the same time, primary school students also need to learn to turn fractions into decimals and decimals into fractions.