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Not a child genius? Not a problem. My name is Corey and I’m here to guide you through an interactive course on quantitative problem solving for mastering the math section of the GRE and GMAT exams. These problems are not duplicates of the long, tedious, subpar GRE and GMAT course books that you've already purchased (such as the Barron's or Manhattan series which deviate from the actual GRE given by ETS and assume that you have infinite preparation time to work through their long lists of questions), so you will be getting brand new problems modeled after REAL GRE and GMAT questions that will challenge you in a unique way. This course is vitally important for anyone planning to apply to most graduate programs and the GRE and GMAT math questions come fully annotated solutions. This course is also ideal for high school students preparing for the SAT, as many of the harder math questions on the SAT will seem simple after mastering these questions. Feel free to preview sample solutions so that you have an idea of what to expect in the rest of the course. Thank you for your time and I look forward to helping you maximize your math proficiency.
Feel free submit questions through the course or directly to my email (hokiesalum[AT_symbol]]gmail[DOT]com ; include Udemy in the subject line). I want to do my best to make sure that you succeed! :)
Section 1: Introduction  

1  00:51  
Math Intro 

Section 2: Teaching Lectures  
2  05:40  
This lecture will cover the derivation of the formulas for permutations and combinations. Permutations represent selecting objects from a set of objects and the order of selection IS important. Combinations represent selecting objects from a set of objects and the order of selection is NOT important. n Permutation x = n! / (nx)! n Choose x = n! / ( (nx)! * x! ) 

3  11:49  
Prime factorization is when you split a number into its prime factors. A prime number is a number that is only divisible by 1 and itself. 2 is defined as the first prime number. The factors of a number are the numbers that evenly divide into that number. For example, the factors of 10 are 1, 2, 5, and 10. The prime factorization can be used to find the greatest common factor (GCF) or the least common multiple (LCM) of two or more numbers. The GCF can be used to simplify fractions. The LCM can be used to find a common denominator to add or subtract fractions. 

4  06:33  
The most important exponent rules are covered in this lecture. The most important rules are: 

5  05:43  
Combined rate / work problems are used to add or subtract the rates of different people when they are doing the same task. Remember that when you add or subtract the fractions, the time component has to be in the denominator, on the bottom. For example, 5 miles per hour + 10 miles per hour = 15 miles per hour. Do NOT do: 1 hour per 5 miles + 1 hour per 10 miles = 3 hours per 15 miles. 

6  10:15  
This lecture covers the most important subtopics for dealing with triangles. 45:45:90 triangle = x : x : x*sqrt(2)6. Any side of a triangle must be less than the sum of the other two sides of the triangle and more than the absolute value of the difference between the other two sides of the triangle. 

7  07:22  
This lecture covers fraction arithmetic. 1. To multiply fractions, multiply the numerators and denominators straight across. 2. To divide fractions, change the fraction being divided into its inverse, and then multiply the fractions straight across. 3. To add and/or subtract fractions, find the LCM (least common multiple) of the denominators, change all fractions so that they share this LCM, then perform the addition and subtraction operations only on the numerators, not the denominators. 

8  06:21  
This lecture will cover divisibility rules. 2: The number is even; the number ends in 0, 2, 4, 6, or 8. 3: The sum of the digits of the number is divisible by 3. 4: The last two digits is divisible by 4. 5: The last digit is either 5 or 0. 6: The number is divisible by both 2 and 3. 9: The sum of the digits is divisible by 9. 10: The number ends in 0. 

9 
Ratios and Proportions Review Problems

4 pages  
10  30:19  
Ratios and Proportions Review Problem Video Solutions 

11  06:10  
This lecture covers GRE quantitative comparison strategies. 1. Always use your pencil and paper. 2. Add or subtract any number from both sides to simplify the problem. Usually this is useful if you have the same number, variable, or equivalent expression on both sides. 3. Multiply of divide any positive number, variable, or expression from both sides to simplify the problem. Sometimes this is optional, but other times this is essential for solving a problem. Remember that it must be a positive number, variable, or expression, as doing this with a negative number change the problem being asked. 4. Have confidence. The GRE test is also a psychological test of your math ability and confidence level. Not being confident in your math skills leads to double and triple checking answers, thereby taking away time from the other questions in the test.</b> 

Section 3: Math Problems  
12  67 pages  
Problem List 

13  02:46  
Topics: Translating Words Into Equations Solving Algebraic Equations 

14  04:23  
Topics: Translating Words into Equations Age Problems 

15  01:57  
Topics: Integer Problems 

16  01:56  
Topics: Percentages Translating Words Into Equations 

17  03:34  
Topics: Permutations 

18  04:06  
Topics: Probability TwoWay Tables 

19  02:26  
Topics: Combining Algebraic Equations 

20  02:05  
Topics: Exponents 

21  02:45  
Topics: Work / Rate Problems 

22  03:25  
Topics: Unit Conversions 

23  04:27  
Topics: Algebraic Factoring 

24  02:07  
Topics: Solving Algebraic Equations 

25  03:33  
Topics: Averages 

26  02:03  
Topics: Ratios 

27  02:26  
Topics: Ratios (Correction: $20 should be added at the end to give $420 as the correct answer) 

28  04:00  
Topics: Interest Rate Problems 

29  05:41  
Topics: Distance, Rate, Time Problems 

30  04:01  
Topics: Ratio Problems Probability 

31  02:25  
Topics: Geometry Ratios 

32  01:41  
Topics: Sum and Average Problems 

33  04:17  
Topics: Area Perimeter Optimization 

34  03:58  
Topics: Permutations 

35  04:21  
Topics: Mixture Problems 

36  02:36  
Topics: Distance, Rate, Time Problems 

37  01:27  
Topics: Matching Pairs 

38  03:02  
Topics: Combined Work / Rate Problems 

39  03:18  
Topics: Combined Work / Rate Problems 

40  03:48  
Topics: Averages Medians 

41  03:20  
Topics: Probability 

42  03:19  
Topics: Probability Translating Words Into Equations 

43  01:29  
Topics: Probability 

44  05:03  
Topics: 

45  03:11  
Topics: Geometry Angles Polygons 

46  03:32  
Topics: Geometry Inscribed Polygons Areas Perimeters 

47  02:57  
Topics: Percentages Translating Words Into Equations Solving Algebraic Equations 

48  04:13  
Topics: Triangles 

49  04:39  
Topics: Statistics Normal Distribution Means and Standard Deviations 

50  04:29  
Topics: Averages Sums 

51  02:16  
Topics: Numerical Factors Prime Numbers 

52  02:11  
Topics: Factorials Divisibility Numerical Factors 

53  02:41  
Topics: Ratios Unit Conversions 

54  02:43  
Topics: Inequalities 

55  02:38  
Topics: Translating Words Into Equations Proportionality Solving Algebraic Equations 

56  03:03  
Topics: Translating Words Into Equations Solving Algebraic Equations 

57  03:13  
Topics: Coin Problems Translating Words Into Equations Solving a System of Linear Equations 

58  04:58  
Topics: 

59  04:51  
Topics: Solving algebraic equations with absolute value signs 

60  04:49  
Topics: Prime Numbers Divisibility Rules 

61  04:16  
Topics: Translating Words Into Equations Combined Work / Rate Problems Ratios and Proportions 

62  02:00  
Topics: Factorials Multiplication Factors 

63  03:32  
Topics: Mixture Problems Translating Words Into Equations Solving Algebraic Equations 

64  03:27  
Topics: Translating words into equations Right triangles Pythagorean triples Perimeters Solving a system of equations 

65  03:56  
Topics: Geometry Combinations 

66  02:39  
Topics: Multiplication rules Divisibility rules 

67  02:09  
Topics: Combinations 

68  03:20  
Topics: Divisibility rules 

69  03:11  
Topics: Sequences 

70  03:40  
Topics: Time Problems 

71  03:14  
Topics: Circles Special Triangles Areas Angles 

72  02:33  
Topics: Equations of Lines Slopes Perpendicular Lines 

73  03:41  
Topics: System of Equations Factoring Quadratic Equations 

74  02:29  
Topics: Ratios and Proportions Squares Circles Areas Perimeters 

75  02:53  
Topics: Sequences and Series 

76  02:25  
Topics: Averages Sums 

77  02:03  
Topics: Permutations and Combinations Digits 

78  02:25  
Topics: Ratios and Proportions 

79  03:33  
Topics: Exponents 

80  02:25  
Topics: Inequalities Systems of Equations 

81  02:43  
Topics: Translating Words Into Equations Fraction Arithmetic Solving an Equation for a Variable 

82  02:49  
Topics: Translating Words Into Equations Fraction Arithmetic Solving an Equation for a Variable 

Section 4: Conclusion  
83  00:21  
Math Conclusion 
Graduated summa cum laude from Virginia Tech with a major in chemical engineering (inmajor GPA: 3.94) and a minor in chemistry. Completed written and oral doctoral qualifiers in chemical engineering at MIT. Extensive research experience with the US Army Countermining Division, DuPont, and MIT.
Adjunct Professor (New England College of Business). Tutoring prodigy...I love my job and fully invest myself in my clients, as I love their success even more. Extensive tutoring experience (300+ clients in the past 4 years), particularly in math (with a specialty in calculus through differential equations), physics, chemistry (general and organic), statistics (high school through upper graduate level, with a specialty in SPSS), academic and research writing, and test preparation (GRE, GMAT, MCAT, PCAT, DAT, SAT, ACT, ASVAB, SSAT, and MTEL math). I also create electronic flashcards to help my clients study, compatible with smartphones and iPads.
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Wonderful course and easy to understand
Professor Moore's lecture is very clear and easy to understand. His videos help me to grasp the Math concept quickly. Definitely, Professor save me lots of time for studying. I like his videos much better than the GRE book I read in the past. He's awesome. Thank you so much Professor Moore.
Megan
The visuals and the fact that I can go back to the lectures whenever and how many times I want for review after tutoring sessions is very helpful for me and good reinforcement.
Everything you need for GRE Math, great practice problems
Corey covers all of the math concepts that you might find on the GRE. He is skilled at breaking them down in a way that's understandable and applicable on actual GRE questions. Same with his solutions to the practice problems  he's great at picking out the underlying equations that the word problems are masking, so that you can understand the simplest (and surest) way to approach similar questions on the GRE. I would take more of his courses if they were on here!
Great course! very easy to understand difficult problems
I highly recommend using Corey's coursehe breaks down the problems into details which are essential in understanding both the concept and building a strong groundwork for future similar problems. His tactics are very useful as well. With practice, I am sure that I will master solving the problems faster which is a key in getting a good GRE score. Thanks Corey!
Awesome Instructor!
Corey is very clear in his instruction, and speaks slowly so the problems are easier to grasp. I have purchased Coreys classes in other forums and he never disappoints.