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33 Cards in this Set
 Front
 Back
natural #s

{1, 2, 3 ...} counting #s


whole

natural #s and 0


integers

whole #s & their opposites
{....3,2,1,0,1,2,3.....} 

rational

any # that can be written in form of fraction


irrational

any # that can NOT be written in form of fraction


real

all irrational and rational #s


What is the formula for area of a rectangle?

A = L * W


What is the formula for area of a triangle?

A = 1/2 B * H


Congruent

All sides and angles are the same  same size, same shape


Order of Operations

PEMDAS  Parentheses, Exponents, Multiplication, Division, Addition, Subtraction


proportion

equation that states 2 ratios (fractions) are equal
example 1/2=50/100 

expanded form

2,495 = 2,000 + 400 + 90 + 5


mixed numbers

A number that consists of a whole number part and a fractional part.
Example: 1 1/3 

digits

any one of the following ten numerical symbols: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.


origin

(0,0)


xaxis

horizontal number line


yaxis

vertical number line


ordered pair

(x,y)


terminating decimal

A decimal with a finite number of digits.


repeating decimal

A decimal in which a digit or a set of digits repeat infinitely.


range

In statistics, the difference between the largest and smallest values in a sample.


prime number

A whole number greater than 1 whose only factors are 1 and itself.


composite number

A number exactly divisible by at least one whole number other than itself and 1.


similarity

Having the same shape, but not necessarily the same size.


mode

The number of element that occurs most frequently in a set of data.


median

The middle number in an ordered set of numbers.


What is the formula for area of a circle?

"Pi r squared"


What is the formula for circumference of a circle?

Pi x D


Complementary angles

Add up to 90 degrees


supplementary angles

Add up to 180 degrees


probability

the number of chances
divided by the number of choices 

what are the factors of 15

1, 3, 5


what are the multiples of 6

6, 12, 18, 24...
