1, and can count down from "1" skillfully.

2. Be able to count skillfully from a certain number in the middle. For example, the teacher said: count from 4; Count from 12.

3. Be able to count down from a certain number in the middle skillfully. Example: The teacher said: Count down from 4, and count down from 12.

Second, let children master the relationship between numbers.

For example, what is in front of 5? What's behind? 8 What's ahead? What's behind? Count forward from 5, count backward, count forward from 1 1, count backward.

Third, let children master the relationship between numbers.

For example, which is bigger, 7 or 8? 12 or 4, which is bigger?

Fourth, let children learn to read questions.

Many children can read the questions, but they can't understand them. Children know the ways of "+"and "-",but they don't know how to read them. Let the children read it out and do the next calculation. Tell them to count backwards when they read "add". When you read "minus", you count forward.

Fifth, teach children to know one and ten.

Let the children skillfully say which of the two digits and which of the ten digits.

For example: 15, the unit is 5, and the decimal number is 1.