32 53 minus 12 What is counted first and then what?

Calculate 32 minus 12 = 20 first, then 20 + 53 = 73

Methods of Assault Math Before Exams.

1.Look at your notes first and then do your homework.

Some first-year high school students feel that they have heard what the teacher has said.

But why is it so difficult to do the questions yourself? The reason for this is that the students' understanding of what the teacher is saying is not yet at the level required by the teacher.

Therefore, before doing homework every day, be sure to read the relevant content of the textbook and the class notes of the day.

Whether or not you can persist in this way is often the biggest difference between good students and bad students.

In particular, when the practice questions are not very matched, there is often no type of question that the teacher has just talked about in the homework, so it cannot be compared and digested.

If you don't pay attention to the implementation of this, it will cause great losses over time.

2.Strengthen reflection after doing the questions.

Students must make it clear that the question they are doing now must not be the question of the exam.

Rather, it is necessary to use the ideas and methods of solving the problems that are currently being done.

Therefore, you should reflect on each question you have done and summarize your gains.

It is necessary to sum up: what kind of question is this and what method is used.

Make knowledge into a film, and problems into a string.

Over time, a scientific network system of content and methods has been built.

As the saying goes: it's hard to buy with money.

We believe that it is of great value to look back and look back after completing your homework.

Looking back is a very important part of the learning process.

See if you're doing it right; What other solution; where the topic is located in the body of knowledge; What is the essence of the solution; Whether the known and the sought in the question can be interchanged, and whether appropriate additions and deletions can be made.

Addition is calculated first, then subtraction, and the result is 73

9. Develop good problem-solving habits and improve your thinking ability Mathematics is the gymnastics of thinking, and it is a discipline with strong logic and rigorous thinking. Training and standardizing problem-solving habits is an effective way to improve the use of words, symbols and graphics, which are the basis for developing thinking ability. Therefore, it is necessary to gradually consolidate the foundation and improve one's thinking ability.

10. Develop the habit of reflection after solving the problem and improve the ability to analyze the problem After solving the problem, it is necessary to develop the opportunity to review the following questions: How to analyze the association and explore the way to solve the problem in the process of solving the problem? What is the key to getting the problem solved?

What difficulties did you encounter in the process of solving the problem? How did you overcome it? In this way, through the review and reflection after solving the problem, it is conducive to discovering the key to solving the problem, and extracting mathematical ideas and methods from it.

Therefore, after solving the problem, we should often summarize the rules of the problem and the solution, and only by reflecting diligently can we "stand on the mountain, see far, and control the overall situation", and improve our ability to analyze the problem. 11. It is necessary to develop the habit of correcting errors and revising, and improve the ability of self-judgment It is necessary to develop the psychological quality of being aggressive, indomitable, resistant to setbacks, and not inferior. 12. To develop the habit of being good at communication and improve the ability to express In the process of mathematics learning, students should be good at cooperating with some typical problems, expressing their opinions, discussing with each other, learning from others' strengths and making up for their own shortcomings, and they can also take the initiative to communicate with the teacher, express their own opinions and opinions.

Therefore, only by constantly communicating can we promote each other, develop together, and improve the ability to express ourselves. If you rest on your laurels, you'll waste unnecessary time. 13. It is necessary to develop the habit of diligent study and good thinking, and improve the ability to innovate "learning without thinking is reckless, and thinking without learning is ruined".

In the process of learning mathematics, we should follow the laws of understanding, be good at using our brains, take the initiative to find problems, think independently, pay attention to the internal connection between new and old knowledge, grasp the connotation and extension of concepts, achieve multiple solutions to one problem, change multiple questions, not be satisfied with ready-made ideas and conclusions, be good at thinking about problems from multiple aspects and directions, dig out the essence of problems, and have the courage to express our own unique opinions. Because only by thinking can we have doubts and solve doubts, and understand them thoroughly. If a person is in a problem-free state for a long time, it means that he does not think enough and cannot improve his studies.

This problem needs to be calculated from left to right, first the addition and then the subtraction.

3.Improve the efficiency of problem solving. Exercises should be done with typical examples.

The most important thing is to choose"Good question", don't just do it when you see the topic, indiscriminately, that will often get half the result. The questions are all around the knowledge points, and many of the questions are quite similar, first choose the knowledge points that you want to be strengthened, and then choose the topic around this knowledge point, the questions do not need to be many, as long as one similar question is enough, you can do it seriously after choosing the question. The improvement of the efficiency of the problem depends on the process of problem writing and the sharpness of thinking.

For the wrong questions, you should seriously think about the reason for the mistake, whether it is a lack of understanding of the knowledge points or carelessness, and do it again after analysis to deepen the impression, so that the efficiency of the question will be high.

4.Improve self-confidence in learning. Scientific research has proved that human potential is great, but most people do not develop this potential effectively, and human self-confidence is a very important aspect.

Whatever you do, whenever and wherever you do, with this self-confidence, you have a belief that you will win, and it will enable you to quickly get rid of the shadow of failure. On the contrary, if a person loses his self-confidence, then he will achieve nothing and can easily fall into eternal inferiority. You have to see your strengths, your strengths, and appreciate yourself.

To see your own progress and encourage yourself. The meaning of life is to love yourself bravely and tap into your potential. Improve your self-confidence by trying to succeed.

Answer: 53-5 first calculates 5-3 equals 2, and then calculates 50-2 equals 48.

53-5 divides 53 into 40 and 13, first 13-5 = 8, then 40 + 8 = 48

Here's how to calculate it.

1. Extract the original formula: 32+53-12

2. Calculation process:

3. Calculation result: 73

4. Thank you and look forward to hearing from you.

This is the subtraction calculation and application of the mathematical basis, so the correct calculation method should be 43 minus 30, first calculate the difference between 40 and 30, and then calculate the sum of 3, so that a good calculation result will be achieved, and the correct answer is 13.

Therefore, it is necessary to calculate mathematics topics and master the calculation methods and laws of mathematics, and it is necessary to learn more from the teacher, so that you will master it better, learn and communicate with the teacher, be good at asking questions, and pay attention to communication methods.

1.Approve before you make a suggestion.

When we have a good suggestion, we should first recognize the other person before making any reasonable suggestion. Use a tactful suggestion to make the other party more acceptable.

If we point out the mistakes of others and then say that our own advice is difficult for many people to accept, after all, everyone wants to be right.

2.Don't deny others all the time.

When communicating with people, don't always deny them. Don't constantly say, you shouldn't, you can't, you don't understand, you can't wait for these words that negate the other person.

Constantly denying others will not only not make them correct, but will make them feel lost or disgusted.

3.Be appropriately silent.

When we encounter a problem that we don't understand, don't pretend to understand and talk endlessly, but learn to keep silent and let the other party say more. So as not to have an embarrassing situation because of saying the wrong thing.

It is said that silence is golden, and when you encounter something you don't understand, don't rush to express it, you should listen to it, giving people a sense of humility and recognition.

4.Talk more about each other than yourself.

When communicating with people, everyone likes to talk about what they are interested in, and they like others to talk about their own things. So we first have to learn to understand each other, not ourselves.

Only by talking more about each other can the other party feel your sincerity and feel that chatting with you is a very comfortable process, because everyone wants to be understood by more people, and talking more about each other is precisely to understand each other and empathize with each other.

5.Learn to compliment each other.

Praise is a virtue, but also a kind of recognition of the other party's performance, when communicating with people, other people's opinions, if we can all express praise, this is undoubtedly to give the other party a sense of respect, a sense of honor.

The other person will definitely enjoy this feeling, and at the same time, the other person will also have a new understanding of you, which will further promote your friendship.

6.Learn to empathize.

We should learn to empathize with each other and consider problems from the other party's point of view, so that we can understand each other more.

When we all know how to empathize, our tolerance will increase, and we will not have unpleasant chat scenes because of some small things.

43 minus 30 first calculate the single digit subtract 3-0 3, and then calculate the ten digit subtract 40-30 10 to get the number 13.

Please take a closer look: according to the title, 32-5=27, the operation step slips and traps the royal burial suddenly: first calculate 12-5=7, and the ten-digit credibility reading paragraph debate 3 borrows a grip to split the missing 1, and the remaining 2, so the result of the operation is 27.

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32, one, five, two, 27, first count a few minus a few, and then a few minus a few The answer is 25. Specifically, first perform a few minus calculations, i.e., 5-2=3, and then use the resulting result 3 to subtract the previous 32-3=29, so the final result is 25.

32, 5, 2, 27, first count a few minus a few, and then count a few minus a few.

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32, one, five, two, 27, first count a few minus a few, and then a few minus a few The answer is 25. Specifically, the base return code is first calculated by subtracting a few, that is, 5-2 = 3, and then using the result 3 to get Shixiang to subtract the previous 32-3 = 29, so the final result is 25.

This question actually tests our basic grasp of subtraction and addition. When solving this kind of problem, you need to pay attention to the order of the operations, and you cannot directly calculate them from left to right. The correct way should be to calculate the subtraction first, and then add or subtract in turn.

In addition, it is also necessary to pay attention to the relationship between the size of the number to avoid negative numbers. If the result of the subtraction is even greater than the subtraction, then it is necessary to readjust the order of the calculations or use other methods to perform the calculations.