First, read the big numbers and reach for the small ones.

When children first encounter addition and subtraction, they are basically used to the method of finger-snapping calculation in kindergarten, but after primary school, they will be exposed to the addition and subtraction of two digits, and those two digits are not enough with their fingers. At this time, you can read the larger numbers and then replace the smaller numbers with your fingers.

For example, in the oral arithmetic problem of 25+5, you can read 25 first, then stretch out five fingers and start to add up, and read it out in turn: 26, 27, 28, 29, 30, and the result will come out soon.

Second, use tools instead of fingers to get rid of dependence.

In order to solve the problem that parents are afraid that their children depend on their fingers, they can use tools such as sticks instead of fingers to calculate in daily practice; And don't just use one tool instead, use a variety of cross-use. At this time, children will not rely on a single tool.

Third, keep in mind the number combinations that can add up to ten.

When many children start to calculate addition and subtraction, because the foundation is not good, it is easy to make mistakes when the addition and subtraction problems are slightly more difficult. Parents can help their children to compose the rules of addition within ten into children's songs, so that they can remember them deeply.

For example, the following song is good: 19 19 Good friend, 2828 holding hands, 3737 really close, 4646 walking together, 550 making a hand.

Fourth, the number above 10 is divided and then added and subtracted.

If the child is just exposed to addition and subtraction at this time, he will be more flustered in the face of numbers above 10. Children can be asked to take the numbers apart first to perform operations. For example, 15-4 can be divided into 10+5-4, and children must know that 5-4 is 1, then 10+ 1 can quickly get the result of 1 1.

Fifth, play more interesting math games with children.

Parents can also interact with their children through some fun games, so that children can easily complete the practice of mathematical oral calculation. For example, set matching rules, you ask questions, I guess, and so on. All good games.