What do you need to pay attention to when doing simple operations and shifting items in mathematics in the sixth grade of primary school

Attention should be paid to the simple operation of moving items in mathematics in the sixth grade of primary school:

1, if it is a mixed operation of addition and subtraction, pay attention to the operation symbol.

2. If it is the distribution method, it should be noted that the common factor should be added when working overtime, and the common factor should be reduced when it is reduced;

3. Pay attention to the change of symbols when brackets are added.

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