First, there is a non-option calculation problem, that is, candidates are required to directly calculate the answer according to the conditions of the question, but existing options cannot be excluded. This means higher requirements for candidates' problem-solving ideas. For some complex questions, if this form is adopted, candidates will not be able to get tips from the options.
For example, the average of 1 1 numbers in the list is 14. If.
The average of 9 numbers in the list is 9, so what is the average of the other 2 numbers?
Numbers? (The arithmetic average of 1 1 number is 14. If the arithmetic average of 9 numbers is 9, what is the average of the remaining 2 numbers?
This question examines the examinee's understanding of the concept of arithmetic mean. If the arithmetic mean of n numbers is x, then the sum of these n numbers is NX. As long as we master this, we should be able to solve the problem of investigating arithmetic mean. It can also be seen from here that some statistical values (such as arithmetic mean, range, standard deviation, median, etc.) are required to be understood in the reformed GRE mathematics. ) has improved.
Second, a number of multiple-choice questions have appeared, requiring candidates to choose all the answers that meet the meaning of the questions.
Because the mathematical knowledge of GRE mathematics itself has not become difficult, this type of question only increases the complexity of candidates' thinking and requires candidates to be more careful.
For example, in triangle ABC, the measure of angle A is 25, and the measure of angle B is.
Greater than 90. Which of the following can be used to measure angle c?
Indicate all possible values.
A. 12 B。 45D。 50 east 70
This topic examines the basic properties of triangles: the sum of internal angles is equal to 180 degrees. According to the meaning of the question, the sum of angle A and angle B is greater than 1 15 degrees, from which it can be concluded that A, B, C and D are the correct answers.
Third, there is a judgment question, which requires candidates to judge whether an equation or a proposition is right or wrong.
For example: symbols? One of the four operations representing addition,
Subtraction, multiplication, division, and 3? 1 = 3.
For each of the following equations, indicate whether the equation must be
True, it must be false, or it may be true or false.
equation
It must be true.
It must be fake.
It may be true or false.
6 ? 2 = 3
6 ? 2 = 4
6 ? 2 = 12
Click on your choice.
Click the answer box and enter a number. Backspace deletion.
Unconventional mathematical symbols in GRE can be regarded as an operation defined by ETS itself. In this question, the symbol "?" Represents one of the four operations of addition, subtraction, multiplication and division, 3? 1=3, what can be deduced from these known conditions? It may or may not be. Next, we will examine the candidates' attitude towards must.
Logics such as "true" and "possibly true" judge the understanding of language. Must be true means must be correct, can't violate at any time; possible
It really means being correct, that is, having the possibility of being correct.
What about the first equation 6? 2=3 inches? Represents the time division error, but in? Stands for correct addition, subtraction and multiplication, so the first formula should be true or false, which may be right or wrong;
The second equation 6? 2=4 regardless? It is neither representative nor correct, so the second formula should be false.
The third equation 6? 2= 12 inch? It means that multiplication is right, but in? Stands for addition, subtraction and division error, so the third formula is the same as the first formula, which may be right or wrong.