How to improve the accuracy of operations in junior high school mathematics

How to improve the accuracy of the calculation of mathematics in the high school entrance examination, there are four methods for reference:

First, we need to pay enough attention to calculations.

Many students always think that calculation questions are much easier than analytical application problems, and they have learned some laws, laws and other knowledge more solidly, and calculation is a breeze, so they are overconfident or unable to concentrate when calculating, and the results are full of errors. Actually, it's not easy to get the calculations right. For example, to calculate a simple equation like 37 54, you need to use the rules of multiplication and addition, and you can complete it after four times of intra-table multiplication and four times of one-digit addition.

As for calculating a fraction and four decimal mixed operation problems, it requires a lot of knowledge such as the order of operations, the laws of operation, and the rules of the four operations, and has gone through dozens of basic calculations. In this complex process, a little carelessness can lead to miscalculations of the whole question. Therefore, the calculation should not be sloppy.

Second, it should be carried out in the general order of calculation.

First of all, clarify the meaning of the topic and see if there are any special requirements such as simple methods and keeping a few decimal places for the number; Secondly, observe the characteristics of the problem, look at the chain stove to see how many steps of operation, and whether there is a simple algorithm; Again, determine the order of operations. On this basis, the calculation is carried out using the relevant laws and laws. Finally, it is necessary to carefully inspect the shed to see if there are any mistakes, omissions, and miscalculations.

Third, it is necessary to develop a good habit of serious calculus.

Some students make mistakes because they are not serious about the calculations. The data is not clearly written, and the identification is wrong. When typing the draft, it is not possible to arrange the vertical column in a certain order, and there is adhesion up and down, left and right, and the same number is not aligned, which is not easy to check, and it is easy to read the wrong data.

Therefore, we must develop the good habit of arranging vertically in an orderly manner and writing numbers carefully.

Fourth, we can't blindly pursue high speed.

Calculation is the most ideal goal, but it must be known that correct calculation is a prerequisite and the most basic requirement, and high speed without the correct basis is worthless. Therefore, it is better to calculate slower, but also to ensure that the calculation is correct and improve the accuracy of calculation.

Junior high school mathematics is not too difficult, as long as you can do it right, and the missed questions are no longer wrong, you can improve the accuracy of junior high school mathematics. In the process of learning junior high school mathematics, students should pay great attention to calculations. Calculation accounts for a large proportion of junior high school mathematics, and if students have a firm grasp of the rules of calculation, they will rarely make mistakes in the process of examination.

Many students are always careless in the process of calculation, and in the process of calculation, lack of concentration will cause errors. <>

If you want to make the calculation error-free, it is actually a very difficult thing, which requires students to be very proficient in some rules of calculation principles and have a very good mentality. Junior high school students are easily distracted in the process of calculation, unable to concentrate, and a little carelessness is likely to make calculations wrong. In the process of calculation, students should strictly follow the order of calculation, see the problem, whether there are other simple and easy methods, and pay attention to the fine limbs, which can also improve the accuracy rate.

Students should develop the habit of checking the questions, and check that there are no mistakes in the calculation after the questions are completed, which can also improve the accuracy of junior high school mathematics. Many people often make mistakes in the process of calculation because they are not serious, which is very undesirable, and students need to develop a good habit of writing mathematics carefully in their daily life. It is easy for students to compare with each other, and if they find that others are very fast in calculations, they will speed up their own speed, so it is easy to make mistakes in their own questions.

In the process of doing the questions, many students do not let the questions get wrong because they can't do them, but only because they are careless. In the process of doing problems, the most important thing for students is to make the questions correct, and it is worthless to make mistakes in their questions at too fast speed. After students make mistakes, they can summarize the mistakes and master the methods of doing the questions, which can also improve the accuracy of junior high school mathematics.

At the same time, a large number of questions can make students' mentality more stable, which is very necessary to improve their grades.

When we learn mathematics, we must pay attention to our own mentality, never be nervous, and we must look at this subject with an optimistic attitude. In the class must listen carefully, if there are questions that will not be cautious, you must ask the teacher, and you have to do more practice questions, you can also ask a tutor, you can also apply for a cram school, if you can do a good job in these aspects, you must be able to improve the accuracy of mathematics.

Through the degree of analysis of the calculation, as well as the order of the calculation, to understand the requirements of the calculation, so that Suixun can ensure the accuracy of mathematics. Understand the prerequisites of calculation, pay attention to the method of counting and guessing the state, organize the knowledge of mathematics, do not blindly pursue speed, and develop a good habit of calculus, these skills can ensure the accuracy of mathematics.

Usually you should memorize the reputation of mathematics, and then you must do more relevant exercises, and after completing the questions, you must do a good job of checking, don't take it lightly, and be sure to copy the wrong questions in advance.

1. Practice calculation questions repeatedly and avoid using electronic tools such as calculators to calculate. After the results are calculated, the calculation is checked, and the complex body type is also calculated by yourself, perseverance, and improvement of mathematical calculation ability;

2. Have accurate positioning and clear learning goals. The depth and breadth of mathematics calculations in junior and senior high schools are large, and everyone has a different foundation and talent.

3. Do a good job of pre-study, review in time after class, and combine preview and review. Improve the efficiency of the classroom, ensure the normal digestion of knowledge, and make the learning progress have a good cycle process;

4. Cultivate self-directed learning ability. High school mathematics is more difficult, most parents can not have good tutoring for their children, good self-learning ability can ensure the normal progress of learning, and the progress of the teacher's praise, so as to ensure academic performance;

5. Pay attention to the accumulation of wrong questions, wrong questions are a valuable asset, junior and senior high school students should have their own wrong question books, which record the wrong question type, so as to facilitate daily review, deepen the impression, and improve mathematics scores.