GMAT Math Preparation Class
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# GMAT Math Preparation Class

Master All Concepts in GMAT Maths Section to Achieve A High Score In GMAT!
Best Selling
4.3 (201 ratings)
4,885 students enrolled
Created by Sri .
Last updated 5/2016
English
English
Current price: \$10 Original price: \$20 Discount: 50% off
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Includes:
• 3.5 hours on-demand video
• Access on mobile and TV
• Certificate of Completion
What Will I Learn?
• Know what to expect and what topics to prepare for GMAT Math section.
• Get an overview of all the topics covered in the GMAT Math section.
• Have a firm grasp of the kind of questions that will be asked in the GMAT Math Exam.
• Maximize the score of your Quant section : 100% is the goal
View Curriculum
Requirements
• Determination To Get A High Score the GMAT Exam
Description

Learn all the concepts of mathematics and the problem solving techniques required to perform well in the quantitative section of the GMAT.

Get a thorough overview of the wide range of mathematics topics covered in the GMAT quantitative section, prepare easily through techniques and get rid of your fear of Mathematics.

Formulas and Problem Solving Techniques

Number Theory, Fractions and Exponents

Products, Powers and Roots

Percentages and Absolute Value

Algebra, Remainders and Word problems

Distance and Work Word Problems

Triangles, Polygons and Circles

Coordinate Geometry, Standard Deviation and Probability

Combinations and Permutations

Sequences and Progressions

3-D Geometries

Effectively Prepare in Limited Time and Boost your Quant scores

Learning to solve problems under time pressure is an important part of preparing for the GMAT. Of course, you should do everything you can do to maximize your ability to perform at the highest level on as many questions as possible. Of course, that’s what any responsible person preparing for the GMAT will strive to do. But the best laid plans of mice and men go oft astray. As well as you prepare and as diligently as you practice, you may still find yourself at the end of a section on a real GMAT running out of time. The strategies in this course will help you to tackle such situations and improve your performance.

Content and Overview

Whether you are starting your preparation or want to brush up all the topics after your preparation, this course serves you to the greatest extent possible. Start your math preparation now and excel in the quantitative section of GMAT.

Want to get the maximum possible score on the GMAT? Maximize your quantitative score which is going to maximize your overall score. We will learn all concepts thoroughly required for performing effectively on the GMAT with efficient techniques which come in handy on the actual GMAT examination.

This course covers all concepts of GMAT Math section and things to keep in mind while preparing for GMAT. It helps you to get an overview of all the concepts and shows you the way to practice through examples. I have covered a wide variety of topics needed to excel in the math section. Even for those who are scared of mathematics, this course is a motivation and a good resource to achieve a high score on the GMAT math section. It is a good start for students preparing for GMAT.

Who is the target audience?
• This course is good for those who want to learn the basic concepts of the topics in GMAT Math, and for those who want an overview of all the Math topics covered, and important things to concentrate on, for preparation.
• This course will also help those who are already familiar with the topics to improve their problem solving skills and efficiently manage their time on the GMAT examination.
Students Who Viewed This Course Also Viewed
Curriculum For This Course
27 Lectures
03:43:57
+
Why you should take this course?
1 Lecture 01:52

Learn all the concepts of mathematics and the problem solving techniques required to perform well in the quantitative section of the GMAT.

Get a thorough overview of the wide range of mathematics topics covered in the GMAT quantitative section, prepare easily through techniques and get rid of your fear of Mathematics.

Formulas and Problem Solving Techniques

Number Theory, Fractions and Exponents

Products, Powers and Roots

Percentages and Absolute Value

Algebra, Remainders and Word problems

Distance and Work Word Problems

Triangles, Polygons and Circles

Coordinate Geometry, Standard Deviation and Probability

Combinations and Permutations

Sequences and Progressions

3-D Geometries

Effectively Prepare in Limited Time and Boost your Quant scores

Learning to solve problems under time pressure is an important part of preparing for the GMAT. Of course, you should do everything you can do to maximize your ability to perform at the highest level on as many questions as possible. Of course, that’s what any responsible person preparing for the GMAT will strive to do. But the best laid plans of mice and men go oft astray. As well as you prepare and as diligently as you practice, you may still find yourself at the end of a section on a real GMAT running out of time. The strategies in this course will help you to tackle such situations and improve your performance.

Content and Overview

Whether you are starting your preparation or want to brush up all the topics after your preparation, this course serves you to the greatest extent possible. Start your math preparation now and excel in the quantitative section of GMAT.

Want to get the maximum possible score on the GMAT? Maximize your quantitative score which is going to maximize your overall score. We will learn all concepts thoroughly required for performing effectively on the GMAT with efficient techniques which come in handy on the actual GMAT examination.

This course covers all concepts of GMAT Math section and things to keep in mind while preparing for GMAT. It helps you to get an overview of all the concepts and shows you the way to practice through examples. I have covered a wide variety of topics needed to excel in the math section. Even for those who are scared of mathematics, this course is a motivation and a good resource to achieve a high score on the GMAT math section. It is a good start for students preparing for GMAT.

#### What are the requirements?

• Determination To Get A High Score the GMAT Exam

#### What am I going to get from this course?

• Know what to expect and what topics to prepare for GMAT Math section.
• Get an overview of all the topics covered in the GMAT Math section.
• Have a firm grasp of the kind of questions that will be asked in the GMAT Math Exam.
• Maximize the score of your Quant section : 100% is the goal

#### What is the target audience?

• This course is good for those who want to learn the basic concepts of the topics in GMAT Math, and for those who want an overview of all the Math topics covered, and important things to concentrate on, for preparation.
• This course will also help those who are already familiar with the topics to improve their problem solving skills and efficiently manage their time on the GMAT examination.

Preview 01:52
+
GMAT Math Overview and Intelligent Strategies
26 Lectures 03:42:05
Preview 07:51

On the GMAT Quantitative section, the Problem Solving questions are just the familiar five-choice multiple choice math problems you have seen on every standardized test since school days.

Preview 05:58

Data Sufficiency (DS) questions are unique to the GMAT, so they may seem strange to you at first. In this lecture, you will learn the basic format of GMAT data sufficiency questions, and you will learn systematic techniques for solving them.

GMAT Data Sufficiency
10:31

Memory versus Memorizing
04:45

You won’t be able to solve a complex overlapping probability question if you don’t understand overlapping sets. Good fundamentals make the extraordinary feats possible. That’s why the best athletes practice the fundamentals of their sport everyday, and it’s also why you should practice and master the math fundamentals that underlying many of the GMAT’s math questions.

These GMAT math formulas are the basis for countless questions on the exam; expect to have to employ them while solving both easy and difficulty questions.

Top 5 Formulas
07:09

Number Theory is concerned with the properties of numbers in general, and in particular integers.
As this is a huge issue we decided to divide it into smaller topics.

GMAT is dealing only with Real Numbers: Integers, Fractions and Irrational Numbers.

Integers are defined as: all negative natural numbers , zero , and positive natural
numbers .
Note that integers do not include decimals or fractions - just whole numbers.

An even number is an integer that is "evenly divisible" by 2, i.e., divisible by 2 without a remainder.

An even number is an integer of the form , where is an integer.
An odd number is an integer that is not evenly divisible by 2.
An odd number is an integer of the form , where is an integer.
Zero is an even number.
even +/- even = even;
even +/- odd = odd;
odd +/- odd = even.
Multiplication:
even * even = even;
even * odd = even;
odd * odd = odd.
Division of two integers can result into an even/odd integer or a fraction.

Number Theory
16:45

Fractions
10:20

• Base - the number that is multiplied by itself a certain quantity of times. For example, in the expression 23, the number 2 is the base.
• Exponent - the number of times a quantity is multiplied by itself. For example, in the expression 23, the number 3 is the exponent.
• Radical - the sign used to denote the square or nth root of a number. For example, the value of "radical 4" is 2 and the value of "radical 9" is 3.
• Exponential Expression - an expression or term with a power or exponent that is not one. For example, x2 is an exponential expression while x is not an exponential expression. Similarly, x1/2 (called the square root of x) is an exponential expression while 2x is not an exponential expression.
• Exponential Equation - an equation with a term that has an exponent greater than one. For example, x3/2 + 2x + 1 is an exponential expression while 2x + 3 is not an exponential expression. Similarly, x3 = 27 is an exponential equation while x + 2 = 29 is not an exponential equation.

Exponents signify repeated self-multiplication. E.g.,: 23= 2*2*2

Exponents are a shorthand way of representing repeated multiplication. Consider the following examples, which are all exponential equations because a term is multiplied by itself multiple times

Exponents
04:51

While most questions in this Products, Powers and Roots rely on a few basic rules, many test-takers don’t know those rules, and the harder questions make it difficult to recognize how to apply them

Products, Powers and Roots
05:27

A percentage is a way of expressing a number as a fraction of 100 (per cent meaning "per hundred"). It is oftendenoted using the percent sign, "%", or the abbreviation "pct". Since a percent is an amount per 100, percent canbe represented as fractions with a denominator of 100. For example, 25% means 25 per 100, 25/100 and 350%means 350 per 100, 350/100.

A percent can be represented as a decimal. The following relationship characterizes how percent and decimals interact. Percent Form / 100 = Decimal Form

For example: What is 2% represented as a decimal?
Percent Form / 100 = Decimal Form: 2%/100=0.02

Percentages
05:02

The absolute value (or modulus) of a real number x is x's numerical value without regard to its sign.

Absolute Value
08:52

Manipulation of various algebraic expressions

Equations in 1 & more variables

Dealing with non-linear equations

Algebraic identities

Algebra
14:17

If x and y are positive integers, there exist unique integers q and r, called the quotient and remainder, respectively, such that y= divisor*quotient+remainder = xq+r and 0<=r<x .

For example, when 15 is divided by 6, the quotient is 2 and the remainder is 3 since 15 = 6*2+3. Notice that 0<=r<=x means that remainder is a non-negative integer and always less than divisor. This formula can also be written as y/x = q+r/x.

Remainders
05:43

1) Read the entire question carefully and get a feel for what is happening. Identify what kind of word problem
you're up against.
2) Make a note of exactly what is being asked.
3) Simplify the problem - this is what is usually meant by 'translating the English to Math'. Draw a figure or table.
Sometimes a simple illustration makes the problem much easier to approach.
4) It is not always necessary to start from the first line. Invariably, you will find it easier to define what you have
been asked for and then work backwards to get the information that is needed to obtain the answer.
5) Use variables (a, b, x, y, etc.) or numbers (100 in case of percentages, any common multiple in case of
fractions, etc.) depending on the situation.
6) Use SMART values. Think for a moment and choose the best possible value that would help you reach the
solution in the quickest possible time. DO NOT choose values that would serve only to confuse you. Also,
remember to make note of what the value you selected stands for.
7) Once you have the equations written down it's time to do the math! This is usually quite simple. Be very careful so as not to make any silly mistakes in calculations.
8) Lastly, after solving, cross check to see that the answer you have obtained corresponds to what was asked. The makers of these GMAT questions love to trick students who don’t pay careful attention to what is being asked. For example, if the question asks you to find ‘what fraction of the remaining...’ you can be pretty sure one of the answer choices will have a value corresponding to ‘what fraction of the total…’

Word Problems
09:33

What is a ‘D/S/T’ Word Problem?
 Distance, Speed, Time
 Usually involve something/someone moving at a constant or average speed.
 Out of the three quantities (speed/distance/time), we are required to find one.
 Information regarding the other two will be provided in the question stem.
The ‘D/S/T’ Formula: Distance = Speed x Time

Distance
04:10

What is a ‘Work’ Word Problem?

 It involves a number of people or machines working together to complete a task.
 We are usually given individual rates of completion.
 We are asked to find out how long it would take if they work together.
Sounds simple enough doesn’t it? Well it is!
There is just one simple concept you need to understand in order to solve any ‘work’ related word problem.

Work Word Problems
04:49

Some 700+ GMAT quantitative questions will require you to know and understand the formulas for set theory,presenting three sets and asking various questions about them. There are two main formulas to solve questions involving three overlapping sets.

Total = A+B+C - (sum of 2-group overlaps) + (all three) + Neither

Let's see how this formula is derived.

When we add three groups A, B, and C some sections are counted more than once. For instance: sections d, e,
and f are counted twice and section g thrice. Hence we need to subtract sections d, e, and f ONCE (to count
section g only once) and subtract section g TWICE (again to count section g only once)

10:13

Triangle is a closed figure consisting of three line segments linked end-to-end. A 3-sided polygon.

The vertex (plural: vertices) is a corner of the triangle. Every triangle has three vertices.

The base of a triangle can be any one of the three sides, usually the one drawn at the bottom.

The altitude of a triangle is the perpendicular from the base to the opposite vertex. (The base may
need to be extended).

The median of a triangle is a line from a vertex to the midpoint of the opposite side.

Area: The number of square units it takes to exactly fill the interior of a triangle.

Triangles
16:47

Types of Polygon

Regular A polygon with all sides and interior angles the same. Regular polygons are always convex.
Convex All interior angles less than 180°, and all vertices 'point outwards' away from the interior. The opposite of concave. Regular polygons are always convex.

Polygons
11:06

A line forming a closed loop, every point on which is a fixed distance from a center point. Circle could also be
defined as the set of all points equidistant from the center.

Circles
09:51

Coordinate geometry, or Cartesian geometry, is the study of geometry using a coordinate system and the principles of algebra and analysis.

In coordinate geometry, points are placed on the "coordinate plane" as shown below. The coordinate plane is a
two-dimensional surface on which we can plot points, lines and curves. It has two scales, called the x-axis and yaxis,at right angles to each other. The plural of axis is 'axes' .

Coordinate Geometry
13:42

Standard Deviation (SD, or STD or sigma ) - a measure of the dispersion or variation in a distribution, equal to the square root of variance or the arithmetic mean (average) of squares of deviations from the arithmetic mean.

In simple terms, it shows how much variation there is from the "average" (mean). It may be thought of as the
average difference from the mean of distribution, how far data points are away from the mean. A low standard
deviation indicates that data points tend to be very close to the mean, whereas high standard deviation indicates that the data are spread out over a large range of values

Standard Deviation
05:51

A number expressing the probability (p) that a specific event will occur, expressed as the ratio of the number of
actual occurrences (n) to the number of possible occurrences (N).

p=n/N
A number expressing the probability (q) that a specific event will not occur:

q=(N-n)/N=1-p

Probability
11:49

Combinatorics is the branch of mathematics studying the enumeration, combination, and permutation of sets of elements and the mathematical relations that characterize their properties.

Enumeration is a method of counting all possible ways to arrange elements. Although it is the simplest method, it is often the fastest method to solve hard GMAT problems and is a pivotal principle for any other combinatorial method. In fact, combination and permutation is shortcuts for enumeration. The main idea of enumeration is writing down all possible ways and then count them.

Combinations and Permutations
05:41

Sequence: It is an ordered list of objects. It can be finite or infinite. The elements may repeat themselves more than once in the sequence, and their ordering is important unlike a set.

Sequences and Progressions
06:29

The GMAT often tests on the knowledge of the geometries of 3-D objects such cylinders, cones, cubes & spheres.
The purpose of this lecture is to summarize some of the important ideas and formulae and act as a useful cheat sheet for such questions

3-D Geometries
04:33