1 First of all, the addition and subtraction within 10 is the basis of addition and subtraction in primary school mathematics, just like the "small ninety-nine" in multiplication and division, which needs children to recite. Then for children who have just entered school, there may be a phenomenon that they cannot concentrate and enter the learning state.

2, cultivate children's interest in learning, from passive learning to active learning, because children may not understand the true meaning of learning, then start with interest!

3, a lot of contact with reality (knowledge comes from life) because the knowledge in books is processed and summarized, there will be some abstraction.

4. Let children understand the concept of addition and subtraction, find some props and building blocks, and show them. After understanding the concept, children will know when to add and when to subtract.

Let the children understand the concept of addition and subtraction, find some props, building blocks and the like, and show them. After understanding the concept, children will know when to add and when to subtract.

As for whether children can say 6 immediately from 10, it all depends on practice. I don't think parents need to worry. Teachers can teach. Just recite it to the children at home and practice it.