Decimal method is to decompose a two-digit number into the sum of 10 and another number. For example, 12 can be decomposed into 10+2, 13 can be decomposed into 10+3, and so on. This way of decomposition helps us to calculate and solve mathematical problems more quickly.

When using the decimal method, you need to decompose two digits into the sum of 10 and another number, and then use the property of 10 to calculate. Specifically, we can regard 10 as a "buffer" and add or subtract another number with 10, thus simplifying the calculation process.

For example, if we want to calculate 12+8, we can decompose 12 into 10+2 and then add 2 and 8 to get 10. So we can easily get the answer 10+ 10=20. Similarly, if you want to calculate 18-7, you can decompose 18 into 10+8, and then subtract 8 from 7 to get 1. So we can easily get the answer 10- 1=9.

In addition to basic addition and subtraction operations, the method of breaking ten can also be used to solve more complicated mathematical problems, such as application problems and algebra problems. For example, in solving the problem, "Xiao Ming has 16 apples, and he gave Xiao Hong five apples. How many apples does he have? " When solving this problem, we can decompose 16 into 10+6, and then calculate it according to the meaning of the question. Similarly, when solving algebraic problems, we can also simplify the calculation process by breaking ten.

The advantage of the method of breaking ten is that it can simplify the complicated calculation process and improve the calculation speed and accuracy. At the same time, breaking the ten methods can also cultivate our thinking ability and mathematical literacy. When using the ten-break method, you should pay attention to the following points:

First of all, we must master the nature of 10. 10 is a very important "buffer" in the ten-break method, and we need to master its properties skillfully in order to better use the ten-break method.

Secondly, we should learn to use the ten-break method flexibly. Although the method of breaking ten is a very effective mathematical tool, not all problems need to use it. When solving problems, we need to choose the appropriate method according to the actual situation.

Finally, we should pay attention to cultivating our own mathematical thinking ability and literacy. Learning mathematics is not only to solve specific problems, but also to cultivate one's thinking ability and quality. Therefore, we need to practice and think constantly to improve our math level.