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To determine the least common multiple…

prime factorization

Prime numbers up to 50

distinct prime factors

we use the prime factorization of those numbers... Let's begin…

the expression of the number as the product of its prime fact…

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, and 47

Distinct simply means " different." Thus, 1,050 = 2 × 3 × 5 ×…

To determine the least common multiple…

we use the prime factorization of those numbers... Let's begin…

prime factorization

the expression of the number as the product of its prime fact…

Standard Deviation

Set

-The square root of the average of squared variations from a…

-Collection of numbers or other objects (**elements**)... -Order d…

Set of all elements in A *OR* B **OR****OR**of all elements in A *OR* B *OR* both

Set of all elements in **BOTH** A **AND** B

Standard Deviation

-The square root of the average of squared variations from a…

Set

-Collection of numbers or other objects (**elements**)... -Order d…

What does it mean for x to be divisibl…

What are the first 10 prime numbers?

Units digit

What does it mean for x to be a multip…

x is divisible by y, if y (the divisor) can go into x evenly,…

2, 3, 5, 7, 11, 13, 17, 19, 23, 29

The number immediately to the left of the decimal point.... Ex:…

If x is a multiple of y, then x can be created by multiplying…

What does it mean for x to be divisibl…

x is divisible by y, if y (the divisor) can go into x evenly,…

What are the first 10 prime numbers?

2, 3, 5, 7, 11, 13, 17, 19, 23, 29

Quant is placed in which sections, Tot…

4 Sections of GMAT???

Things to Remember for Adaptive Scorin…

POE Stands for ???

It is the 3rd Section, 37 multiple choice questions, 75 minut…

❶Analytical Writing Assessment (AWA)\ 1 Argument essay \ 30 m…

❶Make a strong first impression (roughly the first 10 questio…

Process Of Elimination

Quant is placed in which sections, Tot…

It is the 3rd Section, 37 multiple choice questions, 75 minut…

4 Sections of GMAT???

❶Analytical Writing Assessment (AWA)\ 1 Argument essay \ 30 m…

Maximizing Area

Oyinda wants to maximize the area of t…

Melissa's kitchen is a rectangle with…

Minimum perimeter

When two rectangles have the same perimiter, the square alway…

1)X is a rectangle (but not a square)... 2) Y is a square

Assume floor is a square... Maximize area!... P=72... Each side is 1…

Given a rectangle with a fixed area the rectangle with the mi…

Maximizing Area

When two rectangles have the same perimiter, the square alway…

Oyinda wants to maximize the area of t…

1)X is a rectangle (but not a square)... 2) Y is a square

Negative Powers of Ten: Multiplication…

What happens when you multiply differe…

Volume of a cube formula?

Average speed formula?

Multiplication makes the number smaller... Division makes the nu…

When you multiply different bases raised to the SAME exponent…

s ** s ** s or s^3

Total Distance / Total Time

Negative Powers of Ten: Multiplication…

Multiplication makes the number smaller... Division makes the nu…

What happens when you multiply differe…

When you multiply different bases raised to the SAME exponent…

Distance or Work Rate

Rate... a... b... Shrinking Distance is a + b

Rate... a... b... Shrinking Distance is a - b

Rate... a... b... Shrinking Distance is b - a

Rate X Time

Relative Rates: ... Car A and Car B are driving TOWARDS each other

Relative Rates: ... Car A is chasing Car B and catching up

Relative Rates: ... Car A is chasing Car B and falling behind

Distance or Work Rate

Rate X Time

Rate... a... b... Shrinking Distance is a + b

Relative Rates: ... Car A and Car B are driving TOWARDS each other

What is the area of an equilateral tri…

What is the volume of a prism with a t…

What is the surface area of a cube?

What is the volume of a cube?

Area of an equilateral triangle=s^2√3/4

=(base area)(length of the side)

Surface area=6*s^2

Volume of a cube equals s^3

What is the area of an equilateral tri…

Area of an equilateral triangle=s^2√3/4

What is the volume of a prism with a t…

=(base area)(length of the side)

Digits

Place value

factors

product

Represent numbers 1-10; above 9 are composed of digits

hw much a digit is worth; i.e. in 412 4 equals 4 hundreds; 1…

make up the multiplication of a number; 4 and 3 are factors o…

multiplication answer 12 is product of 4x3

Digits

Represent numbers 1-10; above 9 are composed of digits

Place value

hw much a digit is worth; i.e. in 412 4 equals 4 hundreds; 1…

median

mode

range

standard deviation

the middle term in a list with an odd number of terms... -if the…

the term that appears the most frequently

the positive difference between the largest term in the list…

measures the dispersion of a set of numbers around the mean

median

the middle term in a list with an odd number of terms... -if the…

mode

the term that appears the most frequently

Percent Change Formula

Percent of Original Formula

Compound Interest Formula

Successive Percent Change Formula

Percent Change = Change in Value/Original Value

New Percent = New Value/Original Value

P(1+r/n)^(nt)

x(1+%)(1+%)

Percent Change Formula

Percent Change = Change in Value/Original Value

Percent of Original Formula

New Percent = New Value/Original Value

when to use an unknown multiplier

why use an unknown multiplier

how to use an unknown multiplier

when do you use smart numbers?

when you need to change individual elements into a ratio

to avoid messy and complicated systems of equations

assign a variable for the multiplier and apply to every eleme…

when the answer choices have variables and there are no real…

when to use an unknown multiplier

when you need to change individual elements into a ratio

why use an unknown multiplier

to avoid messy and complicated systems of equations

Integer

Is Zero an Integer?**

Even/Odd Integers

multiple of an integer

whole or natural number ... Integers have no fractional or decim…

YES... ZERO is also an integer

An even integer is an integer that has a remainder of zero wh…

product of that integer and another integer ... positive multipl…

Integer

whole or natural number ... Integers have no fractional or decim…

Is Zero an Integer?**

YES... ZERO is also an integer

When I see an unknown distribution

Calculating Median for even vs. odd nu…

Quick Math: 1/6

Quick Math: 5/6

Test out the expected and the extreme distribution

Even: ave of the middle two values... Odd: middle value"

0.1666666667

0.8333333333

When I see an unknown distribution

Test out the expected and the extreme distribution

Calculating Median for even vs. odd nu…

Even: ave of the middle two values... Odd: middle value"

Equation for rate

Equation for Speed

equation for average

weighted average

rate=Quantity A/Quantity B

Speed = distance/time

average = sum of terms/number of terms

weighted average = (percent)(average)+(percent)(average)+...+…

Equation for rate

rate=Quantity A/Quantity B

Equation for Speed

Speed = distance/time

Central Angle Relationship with Circle

Relationship Between 3 Sides of a Tria…

Relationship between sides and angles…

Properties of Parallelograms

Central Angle/360 = ... Sector Area/Circle Area = ... Arc Length/Ci…

Sum of 2 sides > Greater than third sides... Third side > Great…

Sides correspond to their opposite angles (e.g - longest side…

1) Opposite sides are equal and parallel... 2) Adjacent angles e…

Central Angle Relationship with Circle

Central Angle/360 = ... Sector Area/Circle Area = ... Arc Length/Ci…

Relationship Between 3 Sides of a Tria…

Sum of 2 sides > Greater than third sides... Third side > Great…

Square root of X is an integer what is…

Simple interest rate

Compound interest rate

The symbol represents one of the arith…

A... 1. Only 16 is between them... 2. 3, 4, 5 is between

P(1+rt)

P (1+r)to the power of t

1.1&1=2&2... ÷ or -... 2.1&2=(-1)&(-2)... × or ÷... Need both... C is the…

Square root of X is an integer what is…

A... 1. Only 16 is between them... 2. 3, 4, 5 is between

Simple interest rate

P(1+rt)

Write out all known equations and then…

Immediately, draw out the circle and m…

Given: (x^2)/[(y^2)−(x^2)]=25/39 --->…

First determine the factors of the res…

For problems asking to determine a range of values, I will...…

For circle Geometry problems, The first thing I will do is...…

A square wooden plaque has a square brass inlay in the center…

In determining the prime factors of a large number, I will...…

Write out all known equations and then…

For problems asking to determine a range of values, I will...…

Immediately, draw out the circle and m…

For circle Geometry problems, The first thing I will do is...…

When equations are similar you can...

Percent Increase Formula

When answer choices are variables...

When you square a fraction or take squ…

add them together, instead of solving for one variable then t…

new value - old value / original value x 100

PICK NUMBERS!!!!... Chose #'s to solve original equations then…

apply to both denominator and numerator... 8/6 ^2 = 64/36... Squa…

When equations are similar you can...

add them together, instead of solving for one variable then t…

Percent Increase Formula

new value - old value / original value x 100

x = ? ... 7^2x+1 = 7^3x-2

x = ? ... 3^2x-1 = 27 ^x

x = ? ... 5^3x-8 = 25^2x

3^1-2x = 243

because the bases are the same ... 2x+1 = 3x-2 ... 2+ 1 = 3x - 2x…

make same base ... 27 = 9 ** 3 = 3 ** 3 * 3... 27 = 3^3... 3^2x-1 = (3^…

make same base ... 25 = 5^2 ... 5^3x-8 = (5^2)^2x (rule for exponen…

243 = 3** 81 = 3**9**9 = 3**3*3**3**3 = 3^5... 3^1-2x = 3^5 ... 1-2x = 5…

x = ? ... 7^2x+1 = 7^3x-2

because the bases are the same ... 2x+1 = 3x-2 ... 2+ 1 = 3x - 2x…

x = ? ... 3^2x-1 = 27 ^x

make same base ... 27 = 9 ** 3 = 3 ** 3 * 3... 27 = 3^3... 3^2x-1 = (3^…

the product rule

the quotient rule

raising a quotient to a power

raising a product to a power

When your bases are the same you keep the base and add the ex…

When your bases are the same you keep the base and subtract t…

the product rule

When your bases are the same you keep the base and add the ex…

the quotient rule

When your bases are the same you keep the base and subtract t…