What are the main knowledge points of GRE mathematics?

1, master a complete set of GRE mathematics knowledge system.

For example, knowledge systems such as permutation and combination, probability, normal distribution and set are the pain points of many students. What's the difference between permutation and combination? What's the difference between independence and mutually exclusive events? Can you remember some special values of normal distribution?

2. Of course, we should also master some common pits and routines in the GRE exam.

This involves the types of topics and the routines of topics. Common tricks such as: geometric drawing is not in proportion, remainder, permutation and combination, inclusion and exclusion principle of sets, etc.

3. Improve the reading ability of data charts.

Because there is a topic in the exam to examine this knowledge. Many mainland students are afraid of chart problems because they usually practice too little.

4. Improve mathematics sensitivity and speed up problem solving.

For example, prime numbers within 100 are listed in 20 seconds, and the square of 1-20 integer is calculated in 2 seconds.

Nowadays, it is not as easy to get high marks or full marks in mathematics as before.

Everyone should learn to recognize routines, and students who are careful and have weak mathematical sensitivity should practice their sense of numbers.

Brush questions:

1, students with weak foundation are recommended to read The Complete Book of Mathematics and Classic of Mathematical Machines 200 to supplement the knowledge system of mathematics.

The perfect book of mathematics contains all the explanations of GRE mathematical knowledge system, as well as questions of various difficulty levels. Finally, there are five sets of full-real simulation questions, which can be used as teaching materials.

The topic of "200 problems of mathematical machine classics" is relatively simple, which is suitable for practicing hands when laying the foundation.

2. Students who have no problem with basic knowledge points are advised to do "Mathematical Memory Edition Machine Classics 360" and "Mathematical Problems 170" later. Through these materials, basically all the pits and routines of GRE mathematics can be solved.

3. In addition, we also have new mathematical data, 400 questions of GRE's latest mathematical machine. All the questions in it are new math questions in the 2020 GRE exam. The repetition rate of recent exams is very high. I strongly suggest that you do it again and understand it, which is very helpful to solve the problem.

"I didn't take the math test 170 before, and I feel sorry for the cultivation of the motherland;

Now, if you pass the math exam 170, you will feel that your motherland can no longer match your abilities and ambitions. "

Yes, this is the true portrayal of mathematics now, and it is becoming more and more difficult.

Many students complain bitterly, because V is hard enough and Q has become so difficult, which makes it more and more difficult for us to kill G dog. People are hard to tear down, people are hard to tear down ~

Today, Brother Wei will tell you how the routine of GRE mathematics is getting longer and longer.

Example 1: selected from Vigo GRE Mathematics 170 Question 3.0.

Among the 200 workers, 10% men smoke and 49% women smoke.

Quantity a: the total number of smoking workers

Quantity B:59

A. quantity a is larger.

B. the quantity b is larger.

C. these two quantities are equal.

D. this relationship cannot be determined from the information given.

Analysis:

Many students have read this question. Quite simply, the proportion does not represent the specific quantity, so choose D directly. But have you considered how these people feel? 49% must be an integer. Is there still 0.5 people?

So the answer to this question can only be C, because 49% of women mean that there are only 100 women, so there are also 100 men, so there are 59 smokers.

In addition, this question cannot have 200 women, because 10% means that men must be greater than or equal to 10.

Example 2: Selected from the latest mathematical machines in 2020.

15% of the class is over 16 years old. How many students are there in the class at least?

Analysis:

At first glance, how can there be an answer to this question? But with the experience of the last question, do you find that this question is actually a type?

That is to say, considering that people must be integers, and 15%=3/20, there are at least 20 people who can satisfy integers.

Example 3:

Quantity A:x

Quantity B:y

A. quantity a is larger.

B. the quantity b is larger.

C. these two quantities are equal.

D. this relationship cannot be determined from the information given.

It's simple! Y = 75, X = 105, so the answer is A. But does this question tell you that these two straight lines are parallel?

So ... the answer is D.

If you think the answer is helpful, don't be stingy with your praise.

Brother Wei will also share more about math routines.