How do you understand math and how do you understand what is math ?

Asking this question means that you don't really understand math

In fact, there are still many things in mathematics that are not derived by dead calculations and formulas, and in addition to dead deductions, you can also combine numbers and shapes, which is very commonly used in mathematics. Isn't it possible to generalize to a unit circle when we go to the problem of pushing angles?

However, in the current mode of taking exams, I suggest that you still figure out the example questions and exercises in the textbook, because these are the basics. With a complete set of exercises, you don't need too many materials, in fact, you can understand the school textbook.

Don't be stressful, but it's not too easy, math needs to be thought about but more practiced.

For example, the area formula of a triangle can be understood as half of a parallelogram, and then the area of the triangle is calculated by dividing it by two according to the area formula of the parallelogram.

To understand memory, sometimes it is necessary to combine numbers and shapes, which is conducive to memory, and of course, sometimes it is necessary to deduce formulas to make it easier to understand.

The essence of mathematics is the process of combining and deriving a number of shapes. You said that the pure triangular special form of the hook three or something, there is no special meaning. I also played in junior high school and high school, and I resumed classes for a year, but I didn't find this tutorial, but in the end, I made up for it, no problem, I just studied my three-year book on my own, and I can also study which aspect of knowledge you need.

Starting from the relationship between mathematics and people, this film introduces the significance of mathematics as the most basic discipline to the process of human civilization. Introduce the application of mathematics through the embodiment of mathematics in real life, such as timing, architecture, weather forecasting, etc. At the same time, through interviews with mathematicians, we will understand how these "chosen by mathematics" view mathematics and the evolution of science.

This ** also made me feel the importance of mathematics, human beings are inseparable from mathematics, these "chosen by mathematics" mathematicians are even greater, as young people in the new era, we should also understand mathematics and make good use of mathematics.

Mathematics is a general means for humans to strictly describe the abstract structure and pattern of things, and can be applied to any problem in the real world, and all mathematical objects are inherently artificially defined. In this sense, mathematics belongs to the formal sciences, not the natural sciences. Different mathematicians and philosophers have a range of opinions on the exact scope and definition of mathematics.

In the historical development and social life of mankind, mathematics plays an irreplaceable role, and it is also an indispensable basic tool for learning and researching modern science and technology.

Hello, glad to answer for you! We can see that the rectangle of this big Nianfeng is made up of five layers of small rectangles, and it can be seen that the width of each small rectangle is 10 centimeters; Then look at the four layers in the middle, which is equivalent to the length of each rectangle, which is 40 centimeters, and finally the area of each rectangle is 400 square centimeters or meters. The answer is D.

Answer: Understanding of mathematics.

1. Mathematics is a discipline that studies concepts such as quantity, structure, change, space and information, and belongs to a kind of formal science from a certain point of view. Mathematicians and philosophers have a range of opinions about the exact scope and definition of mathematics.

2. Mathematics also plays an irreplaceable role in the development of human history and social life, and is also an indispensable basic tool for learning and researching modern science and technology.

I think it should mean this: Grandpa wants to ensure that the three children's New Year's money is 4 of his original total money, but these numbers add up to 13 12. So grandpa's money is not enough, and there is still a difference of 50 yuan.

If the grandfather originally had x yuan, then x 2 + x 3 + x 4 = x + 50 can be understood as the sum of the three children's New Year's money is equal to the grandfather's existing money x plus 50 yuan.

Sometimes the description of a math problem is understood by the person who asks the question, but the person who reads the problem may not be able to understand it naturally. Many of the problems of counting and grasping acres have such characteristics. At this time, the questioner should be required to explain the problem clearly and concisely to avoid ambiguity.

Grandpa wants to make the three children's New Year's money 4 of his original money, but these numbers add up to 13 12. So grandpa's money is not enough.

13 12 times Grandpa's money, which is 50 yuan more than Grandpa Kai's original money, so if Grandpa Youjia originally had x yuan, then x 2+x 3+x 4=x+50 can be understood as the sum of the three children's New Year's money is equal to Grandpa's existing money x plus 50 yuan.

As a result, grandpa's money was 50 yuan less"? It should be: "As a result, grandpa's money is 50 yuan less than sooner", right? The following is very clear: x 2+x 3+x 4=x+50=13 12

1. For the content in the textbook, it is best to preview it before class, and the targeted practice questions after class must be done carefully, not lazy, and you can also repeat the class example problems several times when reviewing after class, after all, take good class notes when you are in class. "A good memory is better than a pen". For the solution of mathematical, physical and chemical problems, it is not enough to rely on the general idea in the head, but only after careful pen calculation can we find the difficulties and master the solution method, and finally get the correct calculation results.

2. Secondly, we should be good at summarizing and classifying, looking for commonalities and connections between different question types and different knowledge points, and systematizing the knowledge we have learned.

3. Finally, it is necessary to strengthen after-class practice, in addition to homework, find a good reference book, and try to do as many practice questions as possible in the book (especially comprehensive questions and application questions). Practice makes perfect, so that you can consolidate the effect of classroom learning and make your problem solving faster and faster.

Just read more books, not a few times, but to see that the knowledge in the book is clearly understood.

Good. First of all, let's be clear: no one would think about solving this problem in this way, it's just asking for trouble.

So according to this formula, he thinks like this: Suppose the theater stipulates that the people upstairs only need to buy tickets upstairs, and the downstairs needs to buy tickets upstairs and downstairs at the same time.

So, a few people came to this theater, and a few tickets were sold upstairs, so that the tickets upstairs alone sold 1200*14 **. According to the multiplication distribution rate, this number is equal to the number of people upstairs * the fare upstairs + the number of people downstairs * the fare upstairs. So according to the title, in fact, the number of people upstairs * the fare upstairs = the number of people downstairs * the fare downstairs - 800, after substitution, you get:

1200*14+800=number of people downstairs * (fare downstairs + fare upstairs) Therefore, the number of people downstairs = (1200*14+800) (fare downstairs + fare upstairs).

There's a problem with the question... It's all upstairs prices.

However, from your answer, it can be seen that the downstairs price is 8 yuan, and the upstairs price is 14 yuan.

If x tickets are sold downstairs, then (1200-x) tickets are sold upstairs.

The total value of the downstairs fare: 8x, the total value of the upstairs fare: 14 (1200-x) so it gets: 8x-14 (1200-x) = 8008x + 14x = 1200 14 + 800

x=（1200×14+800）÷（14+8）=800

How much is the ticket price downstairs?