Gmat Number Theory In Action

GMAT Quantitative Prep course

What you'll learn

Understand the difference between Easy and Medium difficulty levels in Number Theory questions

Notice the fundamental templates for Number Theory questions including fractions and decimals

Notice the fundamental templates for Number Theory questions including integers

Be exposed to a wider range of question topics for GMAT Number Theory

Requirements

Full English Proficiency

Description

There is one topic prevailing among the GMAT Quantitative questions with an almost 25% frequency of occurrence in the whole section: Number Theory.  It's time for you to realize that a solid foundation for GMAT Prepping must be based on the reassurance that Number Theory is a learning must, and that your chances of reaching a good score can only improve if you decide to get serious about Number Theory.   My previous course provided an introduction to Number Theory.  Now it's time to move from Theory to Practice.   In this course I will prove how the concepts discussed in my previous course: +constitute the core of your Arithmetic knowledge needed for acing the GMAT Quant section.   +appear repeatedly in the most basic Number-Theory-related GMAT questions.+require careful crafting and logic ellaboration at the time of tackling Quant questions of a higher level of difficulty.  Learning to solve GMAT Quant questions based on Number Theory requires undergoing two stages of Modeling and Mimicking.   Modeling here refers to the fact you need good sample materials, theory and solutions to learn from.  This has been my objective when assembling a collection of video solutions for the most typical questions you will find in the Quant section regarding Number Theory.    Mimicking implies your own work, which involves watching the solutions carefully over and over in order to reach two targets:-  understanding how the theory presented and developed in my previous course on Number Theory can be used to tackle the simplest questions.   - memorizing the optimal sequence of logical steps used to approach the solution for each typical question presented.Working the videos in this way will guarantee a maximum satisfaction at the time of tackling new questions yourself because:- you will recognize the patterned questions- you will recall the solutions in your mind and attempt to tackles the questions likewise. 

Overview

Section 1: Applying the fundamentals of Number Theory to tackle Quant questions

Lecture 1 Dealing with combined operations

Lecture 2 How do you arrange powers of decimals?

Lecture 3 Can you tell a factor from a prime factor?

Lecture 4 Learn to simplify sums/differences of powers

Lecture 5 Handle Integer Parity carefully in Data Sufficiency

Lecture 6 When insufficient numeric data is available be smart: assume the easiest values

Lecture 7 Watch for negative numbers when working Data Sufficiency questions with integers

Section 2: Medium-difficulty questions require a perfect sequence of properties application

Lecture 8 Always factor the power with the lesser exponent in a sum/difference of powers

Lecture 9 Learn to use Parity rules for questions with integer operations

Lecture 10 Use negative exponent properties cleverly for unraveling variables

Lecture 11 The power of the quotient approach when handling factor/multiple questions

Lecture 12 Use variables to represent digits of a number with different place values

Lecture 13 Remember the by-default multiple of a number of integers is always the LCM

Lecture 14 Rationalize to untangle an expression with combined roots and radicals

Lecture 15 Mind the formula for the number of factors of even if you don't know the factors

Lecture 16 The best template to tackle divisibility questions in Data Sufficiency

Section 3: Practice questions

Lecture 17 Practice Questions about Fractions / Decimals / Powers / Roots

Lecture 18 Practice Questions about Integers

Candidates to B-school