GMAT Math Prep Course

About This Course

About This Course 1

Preview

About This Course 2

Preview

Math Orientation

Types of Math Questions

Preview

GMAT vs. SAT

Level of Difficulty

Structure of the Course

Substitution Plugging In

Substitution Plugging In 1

Preview

Substitution Plugging In Example 1

Preview

Substitution Plugging In Problem 1

Substitution Plugging In Problem 2

Substitution Plugging In Problem 3

Substitution Plugging In Problem 4

Substitution Plugging In Problem 5

Substitution Plugging In Problem 6

Math Notes Problem 10

Defined Functions

Defined Functions 1

Preview

Defined Functions Example 1

Preview

Defined Functions Example 2

Defined Functions Example 3

Defined Functions Example 4

Defined Functions Example 5

Defined Functions Example 6

Defined Functions 2

Defined Functions Example 7

Defined Functions Example 8

Defined Functions Example 9

Defined Functions Problem 1

Defined Functions Problem 2

Defined Functions Problem 3

Defined Functions Problem 4

Defined Functions Problem 5

Defined Functions Problem 6

Defined Functions Problem 7

Defined Functions Problem 8

Defined Functions Problem 9

Defined Functions Problem 10

Defined Functions Problem 11

Defined Functions Problem 12

Defined Functions Problem 13

Defined Functions Problem 14

Number Theory

Number Theory 1

Preview

Number Theory Example 1

Preview

Number Theory 2

Number Theory 3

Number Theory Example 2

Number Theory Example 3

Number Theory Example 4

Number Theory Example 5

Number Theory Problem 1

Number Theory Problem 2

Number Theory Problem 3

Number Theory Problem 4

Number Theory Problem 5

Number Theory Problem 6

Number Theory Problem 7

Number Theory Problem 8

Number Theory Problem 9

Number Theory Problem 10

Number Theory Problem 11

Number Theory Problem 12

Number Theory Problem 13

Number Theory Problem 14

Number Theory Problem 15

Geometry - Part I

Geometry Introduction

Preview

Geometry Lines and Angles 1

Geometry Lines and Angles 2

Geometry Lines and Angles 3

Geometry Example 1

Preview

Geometry Lines and Angles 4

Geometry Lines and Angles 5

Geometry Lines and Angles 6

Geometry Quadrilaterals 1

Geometry Example 4

Geometry Quadrilaterals 2

Geometry Quadrilaterals 3

Geometry Shaded Regions 1

Geometry Example 7

Geometry Example 8

Geometry - Part II

Geometry 'Birds-Eye' View 1

Geometry Example 9

Geometry Eye-Balling 1

Coordinate Geometry Introduction 1

Preview

Coordinate Geometry Introduction 2

Coordinate Geometry Introduction 3

Coordinate Geometry Introduction 4

Coordinate Geometry Example 1

Coordinate Geometry Distance Formula

Coordinate Geometry Example 2

Coordinate Geometry Midpoint Formula

Coordinate Geometry Example 3

Coordinate Geometry Slope Formula

Coordinate Geometry Example 4

Coordinate Geometry Slope-Intercept Formula

Coordinate Geometry Example 5

Coordinate Geometry Intercepts 1

Coordinate Geometry Intercepts 2

Coordinate Geometry Areas and Perimeters

Coordinate Geometry Example 6

Coordinate Geometry Example 7

Coordinate Geometry Problem 1

Coordinate Geometry Problem 2

Coordinate Geometry Problem 3

Coordinate Geometry Problem 4

Coordinate Geometry Problem 5

Coordinate Geometry Problem 6

Coordinate Geometry Problem 7

Coordinate Geometry Problem 8

Coordinate Geometry Problem 9

Coordinate Geometry Problem 10

Coordinate Geometry Problem 11

Coordinate Geometry Problem 12

Coordinate Geometry Problem 13

Coordinate Geometry Problem 14

Coordinate Geometry Problem 15

Elimination Strategies

Elimination Strategies 1

Preview

Elimination Strategies 2

Elimination Strategies 3

Elimination Strategies 4

Elimination Strategies 5

Elimination Strategies 6

Elimination Strategies Problem 1

Elimination Strategies Problem 2

Elimination Strategies Problem 3

Elimination Strategies Problem 4

Elimination Strategies Problem 5

Elimination Strategies Problem 6

Elimination Strategies Problem 7

Elimination Strategies Problem 8

Elimination Strategies Problem 9

Elimination Strategies Problem 10

Inequalities Introduction

Preview

Inequalities Positive and Negative Numbers 1

Inequalities Positive and Negative Numbers 2

Inequalities Example 1

Preview

Inequalities Absolute Value

Inequalities Example 2

Inequalities Higher Order Inequalities 1

Inequalities Higher Order Inequalities 2

Inequalities Transitive Property

Inequalities Example 3

Inequalities Like Inequalities Can Be Added

Inequalities Example 4

Inequalities Problem 1

Inequalities Problem 2

Inequalities Problem 3

Inequalities Problem 4

Inequalities Problem 5

Inequalities Problem 6

Inequalities Problem 7

Inequalities Problem 8

Inequalities Problem 9

Inequalities Problem 10

Inequalities Problem 11

Inequalities Problem 12

Inequalities Problem 13

Inequalities Problem 14

Inequalities Problem 15

Inequalities Problem 16

Inequalities Problem 17

Inequalities Problem 18

Fractions and Decimals

Fractions Introduction

Preview

Fractions Cross-multiplying

Fractions Solving by Multiplying by the LCD

Fractions Example 3

Fractions Complex Fractions

Fractions Example 4

Fractions Example 5

Fractions Multiplying

Fractions Adding by Cross-multiplying

Fractions Example 6

Fractions Example 7

Fractions Adding by Getting a Common Denominator

Fractions Finding a Common Denominator

Fractions Unusual Behavior

Decimals Introduction

Decimals Adding, Subtracting, Multiplying, Dividing

Decimals Example 1

Decimals Example 2

Decimals Example 3

Fractions and Decimals Problem 1

Fractions and Decimals Problem 2

Fractions and Decimals Problem 3

Fractions and Decimals Problem 4

Fractions and Decimals Problem 5

Fractions and Decimals Problem 6

Fractions and Decimals Problem 7

Fractions and Decimals Problem 8

Fractions and Decimals Problem 9

Fractions and Decimals Problem 10

Equations

Equations PEMDAS 1

Equations Introduction 2

Equations Introduction 3

Equations Properties of Equations 1

Equations Properties of Equations 2

Equations Solving for Expressions

Equations Example 1

Equations 'Triple' Equations

Equations Example 2

Equations Adding Equations

Equations Example 3

Equations Method of Substitution

Proportion Introduction

Proportion Direct Proportion 1

Proportion Direct Proportion 2

Proportion Inverse Proportion 1

Proportion Inverse Proportion 2

Proportion Example 4

Proportion Summary

Proportion Example 5

Ratio and Proportion Problem 1

Ratio and Proportion Problem 2

Ratio and Proportion Problem 3

Ratio and Proportion Problem 4

Ratio and Proportion Problem 5

Ratio and Proportion Problem 6

Ratio and Proportion Problem 7

Ratio and Proportion Problem 8

Ratio and Proportion Problem 9

Ratio and Proportion Problem 10

Exponents

Exponents Introduction

Exponents The Rules 1

Exponents The Rules 2

Exponents and Roots Problem 1

Exponents and Roots Problem 2

Exponents and Roots Problem 3

Exponents and Roots Problem 4

Exponents and Roots Problem 5

Exponents and Roots Problem 6

Exponents and Roots Problem 7

Exponents and Roots Problem 8

Exponents and Roots Problem 9

Exponents and Roots Problem 10

Exponents and Roots Problem 11

Factoring

Algebraic Expressions

Algebraic Expressions Introduction

Preview

Algebraic Expressions Adding and Subtracting

Algebraic Expressions Commutative Property

Algebraic Expressions Associative Property 1

Algebraic Expressions Associative Property 2

Algebraic Expressions Parentheses

Algebraic Expressions Order of Operations

Algebraic Expressions Example 1

Algebraic Expressions Foil Multiplication 1

Algebraic Expressions Foil Multiplication 2

Algebraic Expressions Division

Algebraic Expressions Example 2

Algebraic Expressions Problem 1

Algebraic Expressions Problem 2

Algebraic Expressions Problem 3

Algebraic Expressions Problem 4

Algebraic Expressions Problem 5

Algebraic Expressions Problem 6

Algebraic Expressions Problem 7

Algebraic Expressions Problem 8

Algebraic Expressions Problem 9

Algebraic Expressions Problem 10

Algebraic Expressions Problem 11

Algebraic Expressions Problem 12

Algebraic Expressions Problem 13

Algebraic Expressions Problem 14

Word Problems Translating Words into Symbols 1

Word Problems Translating Words into Symbols 2

Word Problems Translating Words into Symbols 3

Word Problems Translating Words into Symbols 4

Word Problems Translating Words into Symbols 5

Word Problems Motion Problems

Word Problems Example 1

Word Problems Opposite Directions

Word Problems Example 2

Word Problems Example Round Trip

Word Problems Example 3

Word Problems Compass Headings

Word Problems Example 4

Word Problems Circular Montion

Word Problems Example 5

Word Problems Example 6

Word Problems Work Problems

Word Problems Example 7

Word Problems Example 8

Word Problems Mixture Problems

Word Problems Example 9

Word Problems Coin Problems

Word Problems Example 10

Word Problems Example Age Problems

Word Problems Example 11

Word Problems Interest Problems

Word Problems Example 12

Word Problems Problem 1

Word Problems Problem 2

Word Problems Problem 3

Word Problems Problem 4

Word Problems Problem 5

Word Problems Problem 6

Word Problems Problem 7

Word Problems Problem 8

Word Problems (continued)

Word Problems Problem 9

Word Problems Problem 10

Word Problems Problem 11

Word Problems Problem 12

Word Problems Problem 13

Word Problems Problem 14

Word Problems Problem 15

Word Problems Problem 16

Sequences and Series

Sequences Introduction

Sequences Example 1

Sequences Example 2

Sequences Arithmetic Progressions

Sequences Example 3

Sequences Sequence Formulas 1

Sequences Sequence Formulas 2

Sequences Sequence Formulas 3

Sequences Geometric Progressions

Sequences Example 4

Sequences Sequence Formulas 1

Sequences Sequence Formulas 2

Sequences Sequence Formulas 3

Series Introduction

Series Example 1

Series Example 2

Sequences and Series Problem 1

Sequences and Series Problem 2

Sequences and Series Problem 3

Sequences and Series Problem 4

Sequences and Series Problem 5

Sequences and Series Problem 6

Sequences and Series Problem 7

Sequences and Series Problem 8

Sequences and Series Problem 9

Sequences and Series Problem 10

Probability and Statistics

Probability Introduction 1

Probability Introduction 2

Probability Introduction 3

Probability Introduction 4

Probability Consecutive Probabilities 1

Probability Consecutive Probabilities 2

Probability Either-Or Probabilities 1

Probability Either-Or Probabilities 2

Probability Either-Or Probabilities 3

Probability Either-Or Probabilities 4

Statistics Introduction

Statistics Standard Deviation

Statistics Example

Probability and Statistics Problem 1

Probability and Statistics Problem 2

Probability and Statistics Problem 3

Probability and Statistics Problem 4

Probability and Statistics Problem 5

Probability and Statistics Problem 6

Probability and Statistics Problem 7

Probability and Statistics Problem 8

Data Sufficiency

Data Sufficiency-Format

Data Sufficiency-The Directions 1

Data Sufficiency-The Directions 2

Data Sufficiency-The Directions 3

Data Sufficiency-The Directions 4

Data Sufficiency-Elimination

Data Sufficiency Example 1

Data Sufficiency Example 2

Data Sufficiency Example 3

Data Sufficiency Example 4

Data Sufficiency Example 5

Data Sufficiency Example 6

Data Sufficiency Example 7

Data Sufficiency Example 8

Data Sufficiency-Unwarranted Assumptions Example 1

Data Sufficiency-Extreme Cases Example 1

Data Sufficiency-Extreme Cases Example 2

Data Sufficiency-Extreme Cases Example 3

Data Sufficiency-Extreme Cases Example 4

Problem Set A

Data Sufficiency Problem Set A Problem 1

Data Sufficiency Problem Set A Problem 2

Data Sufficiency Problem Set A Problem 3

Data Sufficiency Problem Set A Problem 4

Data Sufficiency Problem Set A Problem 5

Data Sufficiency Problem Set A Problem 6

Data Sufficiency Problem Set A Problem 7

Data Sufficiency Problem Set A Problem 8

Data Sufficiency Problem Set A Problem 9

Data Sufficiency Problem Set A Problem 10

Data Sufficiency Problem Set A Problem 11

Data Sufficiency Problem Set A Problem 12

Data Sufficiency Problem Set A Problem 13

Data Sufficiency Problem Set A Problem 14

Data Sufficiency Problem Set A Problem 15

Data Sufficiency Problem Set A Problem 16

Data Sufficiency Problem Set A Problem 17

Data Sufficiency Problem Set A Problem 18

Data Sufficiency Problem Set A Problem 19

Data Sufficiency Problem Set A Problem 20

Data Sufficiency Problem Set A Problem 21

Data Sufficiency Problem Set A Problem 22

Data Sufficiency Problem Set A Problem 23

Data Sufficiency Problem Set A Problem 24

Data Sufficiency Problem Set A Problem 25

Data Sufficiency Problem Set B

Data Sufficiency Problem Set B Problem 1

Data Sufficiency Problem Set B Problem 2

Data Sufficiency Problem Set B Problem 3

Data Sufficiency Problem Set B Problem 4

Data Sufficiency Problem Set B Problem 5

Data Sufficiency Problem Set B Problem 6

Data Sufficiency Problem Set B Problem 7

Data Sufficiency Problem Set B Problem 8

Data Sufficiency Problem Set B Problem 9

Data Sufficiency Problem Set B Problem 10

Data Sufficiency Problem Set B Problem 11

Data Sufficiency Problem Set B Problem 12

Data Sufficiency Problem Set B Problem 13

Data Sufficiency Problem Set B Problem 14

Data Sufficiency Problem Set B Problem 15

Data Sufficiency Problem Set B Problem 16

Data Sufficiency Problem Set B Problem 17

Data Sufficiency Problem Set B Problem 18

Data Sufficiency Problem Set B Problem 19

Data Sufficiency Problem Set B Problem 20

Data Sufficiency Problem Set B Problem 21

Data Sufficiency Problem Set B Problem 22

Data Sufficiency Problem Set B Problem 23

Data Sufficiency Problem Set B Problem 24

Data Sufficiency Problem Set C

Data Sufficiency Problem Set C Problem 1

Data Sufficiency Problem Set C Problem 2

Data Sufficiency Problem Set C Problem 3

Data Sufficiency Problem Set C Problem 4

Data Sufficiency Problem Set C Problem 5

Data Sufficiency Problem Set C Problem 6

Data Sufficiency Problem Set C Problem 7

Data Sufficiency Problem Set C Problem 8

Data Sufficiency Problem Set C Problem 9

Data Sufficiency Problem Set C Problem 10

Data Sufficiency Problem Set C Problem 11

Data Sufficiency Problem Set C Problem 12

Data Sufficiency Problem Set C Problem 13

Data Sufficiency Problem Set C Problem 14

Data Sufficiency Problem Set C Problem 15

Data Sufficiency Problem Set C Problem 16

Data Sufficiency Problem Set C Problem 17

Data Sufficiency Problem Set C Problem 18

Data Sufficiency Problem Set C Problem 19

Data Sufficiency Problem Set C Problem 20

Data Sufficiency Problem Set C Problem 21

Data Sufficiency Problem Set C Problem 22

Data Sufficiency Problem Set C Problem 23

Data Sufficiency Problem Set C Problem 24

Data Sufficiency Problem Set C Problem 25

Graphs Problem 20

GMAT Math Prep Course Graphs

By: Jeff Kolby

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GMAT Math Prep Course

Graphs Problem 20

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