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Extended information This paper examines children's cognition of addition and subtraction.

When children learn addition and subtraction, they are laying the foundation for future study. Many children begin to learn addition and subtraction in kindergarten, and some parents also give their children early education. But many parents are not education majors and don't know how to teach their children to learn addition and subtraction. So, how to teach children to add and subtract?

It is important for children to learn addition and subtraction. When parents teach their children to learn addition and subtraction, it is best to teach them according to textbooks. There will be many learning methods in textbooks, and parents will teach them in this way. It will be faster and easier for children to understand and learn addition and subtraction in the future.