The principle of 1, ten method addition
The principle of decimal method is based on the feature of carry addition, that is, when the sum of two addends exceeds or is equal to 10, carry is needed. By decomposing one addend into smaller numbers, you can add another addend to get 10, thus avoiding carry. For example, 7 is decomposed into 5 and 2, so that 5 and 3 are added to get 8 without carrying, which simplifies the calculation process.
2. Application of the Ten Methods.
In the calculation teaching of carry addition in mathematics education, the method of adding ten is widely used. By mastering the method of adding ten, students can calculate carry addition quickly and accurately, and improve the calculation efficiency. In practical application, in addition to mathematics education, the ten-point method can also be used in other occasions that need rapid calculation, such as business calculation and game strategy.
Characteristics of ten-point method
1, which simplifies the calculation process.
Decimal method decomposes an addend into the sum of two numbers, and adds one addend and another addend to get 10, thus avoiding carry and simplifying the calculation process. This method is particularly effective in carry addition and can greatly improve the calculation speed.
2. Cultivate a sense of numbers
The method of making up ten requires students to have a sensitive understanding of numbers. Through the decomposition and combination of numbers, students' sense of numbers can be cultivated. This sense of numbers is very beneficial to students' mathematics study and daily life, and can help students better understand and apply numbers.
3. Improve logical thinking.
Ten-complement method requires students to decompose an addend into smaller numbers according to the characteristics of carry addition, which requires students to have certain logical thinking. Through continuous practice and application, students' logical thinking ability and mathematical thinking ability can be improved, which is very beneficial to their all-round development. After learning, I can cope with math better.