1, one by one.
One-by-one addition requires students to add up the numbers one by one in order from left to right, and finally get the result. This method requires students to master the basic rules of addition and calculate patiently and carefully.
2. Add in pairs
Joining the two groups can help students simplify the calculation process and reduce the amount of calculation. By adding two adjacent numbers, students can get the result faster. However, this method requires students to observe the arrangement of numbers and use them flexibly.
3. Vertical calculation method
The vertical calculation method can help students get the results quickly and avoid calculation errors. By adding up the numbers one by one, students can understand the meaning and function of each number more clearly. The vertical calculation method can also help students master the addition algorithm better.
4. Calculation method of exchange method
The exchange method can help students to calculate more flexibly. By adding numbers in any order, students can use the relationship between numbers more flexibly and get results faster. The calculation method of exchange law can also help students better master the principle and application of exchange law.
Three Functions of Two-level Continuous Addition
1, strengthen basic arithmetic
Continuous addition is one of the most basic mathematical operations. Through repeated practice, students can master the law of addition operation and improve the calculation speed and accuracy. Continuous addition can also help students to establish a preliminary concept of quantity and operation, and lay a solid foundation for subsequent mathematics learning.
2. Cultivate computing ability
Continuous practice is one of the important means to cultivate computing ability. Through a lot of practice, students can gradually develop their sensitivity and calculation ability to numbers and improve their ability to recognize and remember numbers. Jia Lian can also help students master basic skills such as estimation and verbal calculation, and lay a foundation for their future mathematics study and life.
3. Promote the development of thinking
Constant practice can promote the development of students' logical thinking and abstract thinking. In the process of continuous addition, students need to gradually master the relationship and law between numbers and use logical thinking to analyze and judge. Through the practice of solving practical and innovative problems, Jia Lian can also promote the development of students' innovative and divergent thinking.