Study sets matching "gmat math knotes"

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Study sets matching "gmat math knotes"

823 terms
GMAT Math
1/2
1/3
1/4
1/5
.5
.333
.25
.2
1/2
.5
1/3
.333
79 terms
GMAT Math
Dividing by 5
double and halving
squaring shortcuts
doubling an area of a square and how t…
1. if a number is divisible by 5 you can always multiply it b…
1. if you have 2 numbers that need to be multiplied and one i…
1. multiples of ten are easy. you just multiply the base unit…
Mupltiply the origional sum by 8 which is 2^3
Dividing by 5
1. if a number is divisible by 5 you can always multiply it b…
double and halving
1. if you have 2 numbers that need to be multiplied and one i…
823 terms
GMAT Math
1/2
1/3
1/4
1/5
.5
.333
.25
.2
1/2
.5
1/3
.333
102 terms
GMAT Math
6/8
5/4
7/4
1/8
.75
1.25
1.75
.125
6/8
.75
5/4
1.25
42 terms
GMAT Math
Compound Interest
Area of a Triangle
Area of a circle
Find the original price if given the t…
Compound interest is interest calculated on the initial princ…
The area of a triangle is 1/2bh
The area of a circle is pi x radius squared
X= Original Price = 100%... New Price/X+Percentage= X... Example:…
Compound Interest
Compound interest is interest calculated on the initial princ…
Area of a Triangle
The area of a triangle is 1/2bh
22 terms
GMAT Math
Integer... Positive Integer / Negative In…
Sum of the angles of a triangle is?
a - b = - (b - a)
Multiples
is a number that can be written without a fractional componen…
180
...
Multiple of 3 are 3 (=3 1), 6 (=3 2), 9(=33), 12(=34),…
Integer... Positive Integer / Negative In…
is a number that can be written without a fractional componen…
Sum of the angles of a triangle is?
180
161 terms
GMAT MATH
Absolute Value
General rule about variables
0^x
1^x
-Generally have two solutions... -+/-... -isolate expression in bra…
if you need to solve for n variables you need n equations
0
1
Absolute Value
-Generally have two solutions... -+/-... -isolate expression in bra…
General rule about variables
if you need to solve for n variables you need n equations
634 terms
GMAT Math
Area of a circle
Circumference
Volume of Cylinder
Volume of sphere
π * r^2
2 π * radius
height π *r^2
4/3 π *r^3
Area of a circle
π * r^2
Circumference
2 π * radius
GMAT math
25%
75%
125%
175%
1/4
3/4 or 6/8
1.25 or 5/4
7/4 or 1.75
25%
1/4
75%
3/4 or 6/8
40 terms
GMAT Math
sqrt(2)
sqrt(3)
sqrt(5)
13^2
1.4
1.7
2.25
169
sqrt(2)
1.4
sqrt(3)
1.7
428 terms
GMAT Math
Area of a circle
Circumference
Volume of Cylinder
Volume of sphere
π * r^2
2 π * radius
height π *r^2
4/3 π *r^3
Area of a circle
π * r^2
Circumference
2 π * radius
GMAT math
Prime numbers (up to 20)
-3^2
X^2 = 16... Is x + or -?
(Negative)^odd is + or -?
2, 3, 5, 7, 11, 13, 17, 19
= 9
Either. Both -4 and +4 are correct.
Negative number
Prime numbers (up to 20)
2, 3, 5, 7, 11, 13, 17, 19
-3^2
= 9
99 terms
GMAT Math
13 squared
14 squared
15 squared
25 squared
169
196
225
625
13 squared
169
14 squared
196
823 terms
GMAT Math
1/2
1/3
1/4
1/5
.5
.333
.25
.2
1/2
.5
1/3
.333
823 terms
GMAT Math
1/2
1/3
1/4
1/5
.5
.333
.25
.2
1/2
.5
1/3
.333
66 terms
GMAT Math
1/8
3/8
5/8
7/8
0.125 = 12.5%
0.375 = 37.5%
0.625 = 62.5%
0.875 = 87.5%
1/8
0.125 = 12.5%
3/8
0.375 = 37.5%
GMAT Math I
180°
a = a... b = b
c = c... d = d
180°
a + b =
Congruent angles?
Congruent angles?
c + d =
180°
a + b =
a = a... b = b
Congruent angles?
88 terms
GMAT MATH
interior angles
exterior angles
area of a triangle
a+b=180
x+y+z= 180
a+b+c=360
a=1/2baseXheight... sum of any two sizes > 3rd side
interior angles
x+y+z= 180
exterior angles
a+b+c=360
823 terms
GMAT Math
1/2
1/3
1/4
1/5
.5
.333
.25
.2
1/2
.5
1/3
.333
GMAT Math
Surface Area of a Rectangular Solid
Surface Area Cylinder
11^2
12^2
2(lw+lh+wh)
2piR^2+2piRH
121
144
Surface Area of a Rectangular Solid
2(lw+lh+wh)
Surface Area Cylinder
2piR^2+2piRH
GMAT Math
1/3 as a Decimal and Percent?
3/10 as a Decimal and Percent?
1/4 as a Decimal and Percent?
1/5 as a Decimal and Percent?
.333 & 33.33..%
.3 & 30%
.25 & 25%
.2 & 20%
1/3 as a Decimal and Percent?
.333 & 33.33..%
3/10 as a Decimal and Percent?
.3 & 30%
37 terms
GMAT MATH Formulas
Distance
Basic Probability Formula
Probability of Both things happening
Probability of one or the other thing…
Rate x Time = Distance
Number of outcomes you want / total number of possible outcomes
Probability A x Probability B = Both things happening
Probability A + Probability B = One or the other thing happen…
Distance
Rate x Time = Distance
Basic Probability Formula
Number of outcomes you want / total number of possible outcomes
GMAT MATH
Distance Formula
Area of Circle
Perimeter of Circle
Length of Circle Sector
Distance Formula
Area of Circle
110 terms
GMAT MATH
numerator
denominator
more than 5
less than 5
分子
分母
>5
<5
numerator
分子
denominator
分母
12 terms
GMAT Math
x^n * x^m
(x^n)/(x^m)
(x/y)^n
x^n * y^n
x^(n+m)
x^(n-m)
x^n / y^n
(xy)^n
x^n * x^m
x^(n+m)
(x^n)/(x^m)
x^(n-m)
261 terms
GMAT MATH
1^2
2^2
3^2
4^2
1
4
9
16
1^2
1
2^2
4
18 terms
gmat math
1/8
3/8
5/8
7/8
.125... 12.5%
.375... 37.5%
.625... 62.5%
.875... 87.5%
1/8
.125... 12.5%
3/8
.375... 37.5%
47 terms
GMAT MATH
A^2 - B^2
0!
X^2 - X < 0
2^6
(A+B)(A-B)
1
0<X<1
64
A^2 - B^2
(A+B)(A-B)
0!
1
11 terms
GMAT MATH
Integer
Divisor(factor)
Multiple
Quotient
Any number in the set; A number with no fractional part.
A number that divides the integer evenly (no remainder).
The result of multiplying a number by an integer (not by a fr…
The answer after you divide one number by another
Integer
Any number in the set; A number with no fractional part.
Divisor(factor)
A number that divides the integer evenly (no remainder).
GMAT Math
Percent Change
Standard Deviation
Variance
Permutation (for presidents)
Change in price/original price x 100
Square root of the variance
The average of squared differences from the mean
nPk= n!/(n-k)!
Percent Change
Change in price/original price x 100
Standard Deviation
Square root of the variance
GMAT Math
Kaplan Method for Problem Solving
Signals to pick numbers
6 Guessing Strategies
Data Sufficiency Strategy
1. Analyze the question... 2. State the task... 3. Approach strateg…
1. Variables in the question stem... 2. Percents in the answer c…
1. Critical thinking... 2. Estimate the answer... 3. Eliminate numb…
1. Analyze the question... •determine if it's yes/no or a value…
Kaplan Method for Problem Solving
1. Analyze the question... 2. State the task... 3. Approach strateg…
Signals to pick numbers
1. Variables in the question stem... 2. Percents in the answer c…
GMAT Math
1/2
1/3
1/4
1/5
.5
.333
.25
.2
1/2
.5
1/3
.333
31 terms
GMAT Math
1^2
1.4^2
1.7^2
2.25^2
1
~2
~3
~5
1^2
1
1.4^2
~2
9 terms
GMAT Math
integer
equivalent
factor
slope
整数
相等
...
斜率
integer
整数
equivalent
相等
13 terms
GMAT Math
axes
diagonal
decimal
product
n. 轴线;轴心;坐标轴;斧头(axe的复数)
對角線
小數
乘積
axes
n. 轴线;轴心;坐标轴;斧头(axe的复数)
diagonal
對角線
12 terms
GMAT- Math
odd*odd=
odd*even=
even*even=
odd+odd=
odd
even
even
even
odd*odd=
odd
odd*even=
even
GMAT Math
Integers
Consecutive Integers
Odd Numbers
Even Numbers
Sometimes called while or natural numbers. They can be negati…
Integers listed in order of increasing value without any inte…
Integers that cannot be divided by 2. These numbers have a re…
Integers that can be divided evenly by 2, leaving no remainder.
Integers
Sometimes called while or natural numbers. They can be negati…
Consecutive Integers
Integers listed in order of increasing value without any inte…
106 terms
GMAT MATH
X^a x X^b
X^a/X^b
(X^a)^b
X^a x Y^a
X^(a+b)
X^(a-b)
X^(axb)
(X x Y)^a
X^a x X^b
X^(a+b)
X^a/X^b
X^(a-b)
5 terms
GMAT Math
Powers of 2 up to 2^9
Powers of 3 up to 3^4
Powers of 4 up to 4^4
Powers of 5 up to 5^4
2^4 = 16, 2^5 = 32, 2^6 = 64, 2^7 = 128, 2^8=256, 2^9=512
3^3 = 27, 3^4 = 81
4^3 = 64, 4^4 = 256
5^3 = 125, 5^4 = 625
Powers of 2 up to 2^9
2^4 = 16, 2^5 = 32, 2^6 = 64, 2^7 = 128, 2^8=256, 2^9=512
Powers of 3 up to 3^4
3^3 = 27, 3^4 = 81
5 terms
GMAT Math
1/2
1/4
3/4
1/3
0.5
0.25
0.75
0.33
1/2
0.5
1/4
0.25
41 terms
GMAT math
work rates tip
work rates tip 2
matrix problem
Least Common Multiple Problems
for problems that have work rates for groups of individuals--…
when dealing with finding times, once you get the fraction, t…
matrixes can be used to summarize data between two variables,…
two ways to solve these problems: ... -Prime factorization: ... fin…
work rates tip
for problems that have work rates for groups of individuals--…
work rates tip 2
when dealing with finding times, once you get the fraction, t…
98 terms
GMAT - Math
Order of operations
Commutative Property
Associative property
Distributive property
PEMDAS
Changing the order of addends or factors does not change the…
Changing the grouping of addends or factors does not change t…
Multiplication distributes over addition or subtraction
Order of operations
PEMDAS
Commutative Property
Changing the order of addends or factors does not change the…
GMAT (Math)
Divisible by 3 if
Divisible by 4 if
Divisible by 6 if
Divisible by 9 if
the sum of the digits of the dividend is a multiple of 3
the last two digits of the dividend form a number divisible b…
the dividend is even and the sum of its digits is a multiple…
the sum of the digits of the dividend is a multiple of 9
Divisible by 3 if
the sum of the digits of the dividend is a multiple of 3
Divisible by 4 if
the last two digits of the dividend form a number divisible b…
37 terms
GMAT Math
Divisible by 3
Divisible by 4
Divisible by 6
Divisible by 8
If sum of digits is divisible by 3
If divisible by 2 TWICE, or if last 2 digits divisible by 4
If divisible by 2 and 3
If divisible by 2 three times or if last three digits divisib…
Divisible by 3
If sum of digits is divisible by 3
Divisible by 4
If divisible by 2 TWICE, or if last 2 digits divisible by 4
GMAT Math
Surface Area of a Rectangular Solid
Surface Area Cylinder
11^2
12^2
2(lw+lh+wh)
2piR^2+2piRH
121
144
Surface Area of a Rectangular Solid
2(lw+lh+wh)
Surface Area Cylinder
2piR^2+2piRH
GMAT - math
Integers
Consecutive integers
Prime #s
Divisible shortcuts: (tests if a numbe…
Whole #s (not fractions)... Can be + or -... 0 is an integer
Integers listed in order of increasing value w/o any integers…
Positive integer divisible by only itself and 1... Ex. 2,3,5,7... *…
3 - sum of its digits are divisible by 3... Ex. 216 - 2+1+6=9...…
Integers
Whole #s (not fractions)... Can be + or -... 0 is an integer
Consecutive integers
Integers listed in order of increasing value w/o any integers…
339 terms
GMAT Math
=3*3
=3*4
=3*5
=3*6
9
12
15
18
=3*3
9
=3*4
12
21 terms
GMAT Math
5/4
7/4
1/8
3/8
1.25
1.75
0.125
0.375
5/4
1.25
7/4
1.75
823 terms
GMAT Math
1/2
1/3
1/4
1/5
.5
.333
.25
.2
1/2
.5
1/3
.333
36 terms
GMAT MATH
1/20
1/25
Multiples of 11 Rule
11 X 12
0.05
0.04
Ex: 39x11... 1) Add digits of number multiplied by 11 (3 + 9 = 1…
132
1/20
0.05
1/25
0.04
1 of 10