GMAT备考必备:GMAT数学PS/DS两大题型介绍,内附全套模拟题下载

在GMAT考试中,数学是属于相对比较容易提分的部分。因为很多中国考生数学基础比较好,很多考生的目标都是拿满分51分。想要让数学变成保分部分,考生必须对这两种题型有所了解。今天我们为大家详细介绍这两种题型:DS和PS。

GMAT考试的数学部分考察学生数学推理、解决数学问题和解释图形数据的能力。包含31道选择题,考试时间为62分钟。

GMAT数学部分有两类问题 ——Problem Solving和Data Sufficiency。这两类问题都需要一些算术知识,初等代数和基本的几何概念。这些问题的难度源于题目本身的逻辑和分析技能,而不是基本的数学技能。下面我们就来具体分析一下这两种问题。

GMAT 数学题型

Problem Solving

Problem Solving考察学生使用逻辑和分析推理来解决数学问题的能力。学生需要读懂并解决问题,从五个答案选择中选出正确答案。

例题: 

Directions

Solve the problem and indicate the best of the answer choices given.

Question

If u > t, r > q, s > t, and t > r, which of the following must be true? 

u > s

s > q

u > r

(A) I only 

(B) II only

(C) III only

(D) I and II

(E) II and III

Answer: (E)

Data Sufficiency

Data Sufficiency考察学生分析数学问题的能力。在完成这类问题时,我们需要识别哪些数据是相关的,并确定在什么时候有足够的数据来解决问题。Data sufficiency通常由一个问题和两个句子组成。考生需要使用语句中的数据、数学知识和对日常事实的了解,决定是否有足够的数据来回答该问题。

例题

Directions

This data sufficiency problem consists of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements, plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of the word counterclockwise), you must indicate whether:

Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked.

Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked.

BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient to answer the question asked.

EACH statement ALONE is sufficient to answer the question asked.

Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.

Question

If a real estate agent received a commission of 6 percent of the selling price of a certain house, what was the selling price of the house? 

(1) The selling price minus the real estate agent’s commission was $84,600.

(2) The selling price was 250 percent of the original purchase price of $36,000. 

(A) Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. 

(B) Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. 

(C) BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. 

(D) EACH statement ALONE is sufficient. 

(E) Statements (1) and (2) TOGETHER are NOT sufficient.

Answer: (D)

GMAT数学备考策略

1、彻底掌握数学考试词汇

GMAT数学拿高分的基础就是彻底掌握数学常用词汇。大家不要觉得工作量大,其实常见的数学词汇并不多,对于要大量攻克GMAT词汇的考生来说纯属小意思。另外,对于这类词汇,我们只需要掌握词汇的意思,考试的时候能够正确理解题意就可以。

我们在这里为大家整理了GMAT数学中最常见的词汇,供大家免费下载:https://cl.ly/ed9589020498

2、仔细审题不放过细节

大家需要对自己的数学能力有信心。GMAT数学部分,只要大家准备充分,考试的时候仔细审题,一般来说不会有大问题。事实上大部分考生都能提前5-10分钟做完QUANT部分的所有数学题。因此,考试的时候大家完全没有必要赶时间,认真读完题目彻底理解清楚题意再开始解题,千万不要因为误解了题意而白白失分。

3、熟练应对常见出题套路

考生如果因为不熟悉题目的表达方式而出错,一般来说都是因为没有好好做过GMAT数学题,可能只是简单背了背生词就直接上考场了。因此,哪怕对于GMAT数学难度并没有放在心上,我们还是建议大家至少把官方指南OG里的题目都仔细认真地做一遍,了解一下各类数学知识点和考点是如何出题,对于题目又是如何描述的。知道了这些出题套路后,考生也就不会太过生疏而意外丢分了。

Manhattan Review GMAT全套数学练习题下载:https://cl.ly/2228fd5a10e2