First, the method:

1, the root sign is like the antonym of finding the power of a number. For example, if the power of 3 is 9, then the root of 9 is 2. ?

2. For example, the number 136 16 1. First, we find a number close to the square root of 136 16 1. Choose any number, such as any number between 300 and 400, and choose 350 as the representative. ?

3. We calculate (350+136161/350)/2 and get 369.5?

4. Then we calculate (369.5+136161/369.5)/2 and get 369.0003. We found that 369.5 is almost the same as 369.0003, and the number at the end of 369 2 is 1. We have reason to conclude that 369 2 =136161?

For those inexhaustible numbers, the accuracy of this calculation for two or three times is considerable, generally reaching several decimal places. ?

Second, the root number:

1 and the root number 2 are about equal to 1.4 14, which are mathematical symbols, and the root number is a symbol used to represent the root operation of a number or an algebraic expression.

2. if a? =b, then a is the n-th root of b or a is the 1/n power of b.

3. The nth handwritten and printed character is represented by, and the number or algebraic expression of the square root is written in the area surrounded by the left side of the symbol and the right side of a horizontal part above the symbol, which cannot be crossed.

How to learn mathematics well;

First, cultivate interest in learning:

1. Have a strong interest in learning. Try to cultivate your interest in mathematics. Over time, you will find that math is not that difficult. Try to read more cartoons and books about mathematics, which can cultivate your interest in mathematics. ?

2. Find a person who is super good at learning and ranks in the top 3 in the class as an "enemy". Try to think of him as your enemy. Think about why you can't surpass him and why you can't study as well as him. Try to anger yourself and try to surpass him. Sometimes success requires the help of the enemy.

Second, study hard:

1, review before class, try to read the original words in the book, draw them in marks if you don't understand, listen carefully in class, understand if you don't understand, or raise your hand and ask the teacher, who will explain them to you.

2. Listen carefully in class and review carefully after class. Follow the teacher's thinking in class, see where the teacher says, ask if you don't understand after class, raise your hand actively in class, develop the good habit of listening to classes and improve efficiency.