intro to gmat math 4:39

mental math: gmat estimation 3:44

mental math: dividing by 5 2:49

mental math: doubling and halving 6:08

mental math: squaring shortcuts 12:26

number sense 10:41

the use and abuse of formulas 2:52

learn from your mistakes 4:43

properties of real numbers 8:25

positive and negative numbers - i 6:00

mental math, addition, and subtraction 5:24

positive and negative numbers - ii 7:44

order of operations 11:26

intro to decimals 11:28

multiples of 10 9:45

more on scientific notation 8:36

intro to fractions 9:27

conversions with fractions and decimals 8:14

fraction properties - i 13:34

comparing fractions i 11:33

comparing fractions ii (advanced) 12:20

operations with fractions 8:22

fraction properties - ii 7:57

mixed numerals and improper fractions 10:30

operations with proportions 6:36

word problems with fractions 3:37

intro to percents 5:27

working with percents 3:35

number sense and percents 4:23

percent increases and decreases 10:35

sequential percent changes 6:53

simple and compound interest 13:59

intro to ratios 9:57

combining ratios 11:17

ratios and rates 6:15

ratios and percents 5:36

divisibility 10:12

divisibility rules 8:01

multiples 8:29

prime numbers 6:28

prime factorization 8:17

counting factors of large numbers 12:15

squares of integers 5:30

greatest common factor 5:57

least common multiple 9:18

gcd lcm formula 4:40

even and odd integers 10:07

testing cases 6:02

remainders 11:40

integer properties strategies 6:33

intro to algebra 7:56

simplifying expressions 6:32

multiplying expressions 7:52

foil method 8:50

factoring - gcf 5:10

factoring - difference of two squares 12:01

factoring - quadratics 7:50

factoring - combined 4:25

advanced numerical factoring 7:09

factoring - rational expressions 5:11

basic equation solving 6:19

eliminating fractions 9:11

quadratic equations 8:04

two equations, two unknowns - i 7:58

two equations, two unknowns - ii 10:22

system - number of solutions 7:21

three equations with three unknowns 9:00

absolute value equations 10:23

function notation 12:50

strange operators 7:46

inequalities - i 13:55

inequalities - ii 11:07

absolute value inequalities 9:35

simplifying with substitutions 5:26

intro to word problems 1:37

assigning variables 9:14

writing equations 7:42

number of variables 8:23

age questions 5:02

intro to motion questions 9:22

average speed 10:19

multiple traveler questions 9:04

shrinking and expanding gaps 12:00

work questions 9:34

growth and decay 4:01

mixture questions 10:00

intro to sets and venn diagrams 9:55

double matrix method 9:23

three criteria venn diagrams 7:49

intro to sequences 7:48

arithmetic sequences 8:24

recursive sequences 10:23

inclusive counting 4:34

sums of sequences 7:32

consecutive integers 9:52

backsolving 7:51

intro to vics 11:11

vics - algebraic approach 9:53

vics - picking numbers 18:41

intro to exponents 9:09

exponential growth 8:39

laws of exponents - i 12:46

negative exponents 11:02

laws of exponents - ii 10:42

units digit questions 7:30

square roots 14:53

other roots 11:53

properties of roots 4:05

simplifying roots 7:53

operations with roots 12:41

equations with square roots 9:43

fractional exponents 7:13

exponential equations 6:56

rationalizing 13:54

working with formulas 10:25

mean, median, mode 9:32

more on mean and median 4:34

weighted averages i 7:00

weighted averages ii (advanced) 8:31

range and standard deviation 16:06

more on standard deviation 17:25

introduction to counting 4:22

fundamental counting principle 7:39

fcp with restrictions 4:36

factorial notation 4:05

counting what you don't want 9:39

counting with identical items 6:18

eliminating repetition 5:55

combinations 7:50

when to use combinations 9:14

calculating combinations 9:50

permutations and combinations 7:54

case counting 7:26

counting strategies 3:17

intro to probability 5:59

complementary events and simple rules 3:22

mutually exclusive events 2:33

probability of event a or event b 3:50

examples of the or rule 2:02

independent events 6:26

examples of the and rule 4:44

generalized and rule 3:52

examples of generalized and rule 7:05

binomial situation 8:40

the "at least" scenario 6:25

analyzing questions 8:47

using counting techniques 5:14

listing vs. counting vs. probability rules 6:31

general probability strategies 4:39

guessing strategies 5:50