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How to evaluate the heterogeneous course of addition and subtraction of fractions with the same denominator in the second volume of the fifth grade of primary school mathematics
How to evaluate the heterogeneous course of addition and subtraction of fractions with the same denominator in the second volume of the fifth grade of primary school mathematics

The classroom is lively and in-depth, students speak enthusiastically and answer questions actively, and so on.

How to evaluate the heterogeneous course of addition and subtraction of fractions with the same denominator in the second volume of the fifth grade of primary school mathematics

The classroom is lively and in-depth, students speak enthusiastically and answer questions actively, and so on.

How to evaluate the heterogeneous course of addition and subtraction of fractions with the same denominator in the second volume of the fifth grade of primary school mathematics

The classroom is lively and in-depth, students speak enthusiastically and answer questions actively, and so on.

How to evaluate the heterogeneous course of addition and subtraction of fractions with the same denominator in the second volume of the fifth grade of primary school mathematics

The classroom is lively and in-depth, students speak enthusiastically and answer questions actively, and so on.