Gre verbal Reasoning and Quantitative Reasoning With Explanations

are not necessarily
drawn to scale
. That is, you should 
not
assume that quantities such as lengths and angle
measures are as they appear in a figure. You should assume, however, that lines shown as
straight are actually straight, points on a line are in the order shown, and more generally, all
geometric objects are in the relative positions shown. For questions with geometric figures,
you should base your answers on geometric reasoning, not on estimating or comparing
quantities by sight or by measurement.
•
Coordinate systems, such as 
xy
-planes and number lines, 
are drawn to scale
; therefore,
you can read, estimate, or compare quantities in such figures by sight or by measurement.
•
Graphical data presentations, such as bar graphs, circle graphs, and line graphs, 
are drawn
to scale
; therefore, you can read, estimate, or compare data values by sight or by
measurement.
More about conventions and assumptions appears in 
Mathematical Conventions (PDF)
.
Quantitative Reasoning Question Types 
The Quantitative Reasoning measure has four types of questions: 
•
Quantitative Comparison Questions
•
Multiple-choice Questions — Select One Answer Choice
•
Multiple-choice Questions — Select One or More Answer Choices
•
Numeric Entry Questions
Click here
 to get a closer look at each, 
including sample questions with explanations.
Each question appears either independently as a discrete question or as part of a set of questions 
called a 
Data Interpretation set
. All of the questions in a Data Interpretation set are based on the 
same data presented in tables, graphs or other displays of data. 
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You can find steps for solving quantitative problems, including useful strategies for answering 
questions on the Quantitative Reasoning measure, in 
Problem-solving Steps
. In addition, the pages 
for each of the four Quantitative Reasoning question types and the Data Interpretation set page, 
mentioned above, contain strategies specific to answering those types of questions. 
You are allowed to use a basic calculator on the Quantitative Reasoning measure. For the 
computer-delivered test, the calculator is provided on-screen. For the paper-delivered test, a 
handheld calculator is provided at the test center. Read more about 
using the calculator
.