What is not solved in math, what will not be done if math solves the problem

Math solves problems that won't work:

1. When faced with a difficult problem and can't think of a way for a while, you can divide it into several sub-problems, and then solve the part that will be solved, that is, to what extent it can be solved, and write a few steps if you can calculate a few steps. For example, from the original translation of written language into symbolic language, and the translation of conditions and goals into mathematical expressions.

You can score points for setting the unknowns of the problem, setting the coordinates of the moving point of the trajectory problem, and drawing the graph correctly according to the meaning of the problem. It is also expected that in the above processing, you may get a moment of inspiration and thus obtain a solution to the problem.

2. There are several questions in some questions, and each question is difficult, for example, you can't answer the previous question, but if you can answer the previous conclusion of the later question, you may wish to answer the latter first, and you can quote the previous conclusion at this time, so that you can still score.

3. Learn to copy answers. When you do a question, you will always have some ideas, but it may be too fragmentary to put together a complete answer idea. At this point, you choose to look at the answer and copy it down.

Don't just look at the answers and copy the answers, copy also to learn skills.

4. Recall which step you are stuck in. When looking at the answers, you should recall which steps you couldn't write down before, or which knowledge points you missed and didn't remember, and gently mark them in the question with a pencil.

5. Use the answers to deduce the question. If you don't have a clue about the question at all, after reading the answers, you should go back to the question. Find out which condition of the question can be used to refer to this knowledge point. It's a kind of reverse thinking.

The answers are used to relate and deduce the conditions given in the question.

Solving mathematical problems is the process of continuously transforming the known conditions to get closer to the quantity sought.

The math problem is to tell you the known quantity and find the unknown quantity. The steps to solve the mathematical problem need to move the known quantity closer to the position quantity step by step. The more knowledge you have, the easier it will be to solve a math problem in a comma.

The axiomatic system of Geometry is also established in this way: 1. Five common assumptions (known quantities) are proposed; 2. Prove various theorems (the quantity sought) 3. Use small theorems to deduce big theorems.

However, some questions are difficult and require a lengthy transformation process to solve. At this time, the theorem plays an important role. A theorem is a general law that summarizes the laws of individual situations and proves them.

It reduces the number of problem-solving steps and can be used directly when proving a math problem without having to prove it again. (For example, if you want to go to a place, you have to go around for a long time at a low speed, but you can drive a highway in one step, very quickly).

The proof of various theorems is the progress of mankind, which reduces the burden of people's thinking, allows mathematicians to spend more energy on bigger problems, and plays a great role in revealing the laws of the world. The mathematical edifice is built up by various theorems, and with the foundation in the front, the more difficult problems in the back can be solved, and these theorems we call knowledge. The more knowledge, the easier it is to solve a problem.

Knowledge is the second element of problem solving.

Is the title written wrong?

1. If it is poured into a rectangle with a edge length of 10 cm, then there is no solution to this problem, because the conditions are not enough, and the volume of the cuboid cannot be found.

2. If it is poured into a square with a edge length of 10 cm, then it can be obtained:

The volume of water v = 15 * 12 * 5 = 900 (cubic centimeters) cube container bottom area s = 10 * 10 = 100 (square centimeters), so the height of water in the cubic container is: 900 100 = 9 (cm), so the water surface distance from the cylinder mouth: 10-9 = 1 (cm).

If the wrong divisor is 38 and the quotient is 5, then the dividend = divisor quotient = 38 5 = 190, and the correct equation is 190 83 = 190 83

Written with a fraction equal to two and twenty-eight-thirds.