On the ability to do math 45

This is probably caused by the low level of the eye, the easy questions are over, the difficult problems are hastily calculated, and the basic things fall over time.

It is recommended that from now on, treat the usual practice as if it were an exam, calculate carefully, write down each step of the calculation in the sketchbook, and find out which step went wrong if you make a mistake.

Also, it's a good habit to prepare an error correction notebook!

Hope it helps! Step up your game!

Spend most of your time on big topics, you can't just go over when you're done, you have to read it a few more times, try not to be in a daze when doing the questions, think clearly, and read the questions carefully.

If you can't pass the exam after the exam, you have to check the big questions that you think you are sure are right again, like sleeping.

Hopefully, your grades will remain stable.

It's not me who hits you, people who are really capable won't fail in exams. You say you're always miscalculated, but it's actually because you've practiced too little. Don't make excuses and keep your feet on the ground.

I feel that if you always miscalculate, or usually do the questions not carefully and seriously, I don't know if you usually do your homework with others to answer the habit, if so, it is better to change it. Although you can get the answers right on a regular basis, it will also mask some of your weaknesses. Only by fully exposing one's weaknesses in daily practice and paying enough attention to them can one make a difference.

In addition, the final answers to the questions in the exam are generally not too difficult to calculate, and if you are more and more awkward in the middle of the calculation, you should consciously check to see if there is a mistake in the previous one. Mathematics is a subject that still needs to do more questions and summarize more, especially focusing on thinking methods, so that we can make great progress. I hope what I've said is useful to you.

Regard carefulness as a quality and ability, and strengthen and reinforce it purposefully.

There should be no doubt about your mathematical ability, and it is estimated that you will be at the forefront every time, but not too prominent. For you, it's nothing more than doing more questions, mainly to improve the speed and accuracy of calculations. In fact, some questions can be answered with special values first, and then you can compare them with the answers you have done, and you can know what is wrong.

Slow down the speed of doing the questions appropriately, and finish it first when you think of A, and then ,。。 B.

As long as you are not careless, you can score 100 points.

There is no other way.

Operation abilityOne of the basic components of mathematical ability refers to the ability to use the knowledge of operation to perform operations and reason to obtain the results of operations.

The origin of "arithmetic" "cultivates students' ability to perform the four calculations correctly and quickly, the ability to correctly solve practical problems, and the ability to have preliminary logical reasoning and spatial concepts".

Computing power mainly refers to the ability to perform calculations correctly according to the laws and laws of operation. Cultivating arithmetic ability helps students understand the arithmetic theory of arithmetic and seek reasonable and concise ways to solve problems. Computational ability helps to form the quality of standardized thinking and develop a meticulous, rigorous and realistic scientific attitude.

Arithmetic ability mainly refers to the ability to perform correct calculations according to the rules of the law and the laws of arithmetic. Be able to clarify the object and meaning of operations, and understand the relationship between algorithms and arithmetic; Be able to understand the problem of operation, choose a reasonable and concise calculation strategy to solve the problem; Ability to facilitate the development of mathematical reasoning skills through calculations. Computational ability helps to form the quality of standardized thinking and develop a meticulous, rigorous and realistic scientific attitude.

The new curriculum standard divides the course content into four sections: Numbers and Algebra, Graphics and Geometry, Statistics and Probability, and Synthesis and Practice. It also puts forward 10 core concepts related to the content:

Number sense, symbol awareness, spatial concept, geometric intuition, data analysis concept, computing ability, reasoning ability.

1. Pay attention to the cultivation of oral arithmetic ability.

To cultivate students' numeracy ability, it is necessary to pay attention to basic oral arithmetic training, which is not only the basis of written arithmetic, estimation and simple arithmetic, but also an important part of numeracy ability. Only with strong oral arithmetic ability can we speed up the written arithmetic and improve the accuracy of the calculation.

2. Pay attention to the cultivation of estimation ability.

In the ordinary classroom computing learning, estimation can be made before calculation, so that students can use a variety of methods to think about problems reasonably and flexibly. Estimating the results after the calculations can give students a valuable test.

3. Pay attention to the teaching of calculation methods and ideas.

Some calculations are actually very simple for students, and most students can do calculations even if the teacher doesn't teach them. However, as a teacher, we must not only be satisfied with students' ability to calculate, but let students understand arithmetic from the process of solving problems, summarize the rules, and participate in the whole process of knowledge formation.

Flexible application of easy methods.

For example, for the calculation of 38+75+62, put it in the application problem, for example: Arbor Day, four (1) classes planted 38 trees, four (2) classes planted 75 trees, four (4) classes planted 62 trees, how many trees were planted in these three classes?

Students quickly list the formula: 38+75+62, and then calculate the answers in the order from left to right, and there are few students who use the easy method.

Therefore, it is necessary for students to appreciate the value of simple methods, and make them as simple as possible. In addition, if students are familiar with some common data in the four operations, they can better grasp the skills and skills of calculation, which will help students' computing ability to meet the requirements of "correct, fast, reasonable and flexible". For example, 25*4=100, 125*8=1000, etc.

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, 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 check 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 making drafts, the vertical type cannot be arranged in a certain order, and there is adhesion up and down, left and right, and the same digits are not aligned, which is not easy to check and 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.