#### Study sets matching "gmat math knotes"

#### Study sets matching "gmat math knotes"

Dividing by 5

double and halving

squaring shortcuts

doubling an area of a square and how to…

1. if a number is divisible by 5 you can always multiply it by…

1. if you have 2 numbers that need to be multiplied and one is…

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 by…

double and halving

1. if you have 2 numbers that need to be multiplied and one is…

Absolute Value

General rule about variables

0^x

1^x

-Generally have two solutions... -+/-... -isolate expression in brac…

if you need to solve for n variables you need n equations

0

1

Absolute Value

-Generally have two solutions... -+/-... -isolate expression in brac…

General rule about variables

if you need to solve for n variables you need n equations

Compound Interest

Area of a Triangle

Area of a circle

Find the original price if given the to…

Compound interest is interest calculated on the initial princi…

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: T…

Compound Interest

Compound interest is interest calculated on the initial princi…

Area of a Triangle

The area of a triangle is 1/2bh

Integer... Positive Integer / Negative Int…

Sum of the angles of a triangle is?

a - b = - (b - a)

Multiples

is a number that can be written without a fractional component…

180

...

Multiple of 3 are 3 (=3

**1), 6 (=3**2), 9(=3**3), 12(=3**4), e…Integer... Positive Integer / Negative Int…

is a number that can be written without a fractional component…

Sum of the angles of a triangle is?

180

Is there a rule for odd*odd?

Is there a rule for odd*even?

Is there a rule for even*even?

What's the formula for standard deviati…

Odd*odd=odd

Odd*even=even

Even*even=even

The square root of the average of (the difference between each…

Is there a rule for odd*odd?

Odd*odd=odd

Is there a rule for odd*even?

Odd*even=even

Distance

Basic Probability Formula

Probability of Both things happening

Probability of one or the other thing h…

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 happeni…

Distance

Rate x Time = Distance

Basic Probability Formula

Number of outcomes you want / total number of possible outcomes