Study your flashcards anywhere!
Download the official Cram app for free >
 Shuffle
Toggle OnToggle Off
 Alphabetize
Toggle OnToggle Off
 Front First
Toggle OnToggle Off
 Both Sides
Toggle OnToggle Off
 Read
Toggle OnToggle Off
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
A key: Read text to speech.a key
229 Cards in this Set
 Front
 Back
(a x b) x c = a x (b x c)

Associative Property


1 cup =________oz

8 ounces


1 day =__________hrs

24


1 gal = _________qts

4 quarts


1 hour = _________min

60


1 lb =___________oz

16


1 min=__________sec

60


1 pt =_____c

4 cups


1 qt = ________pts

2 pts


1 yard =_______ft

3 feet


1 year =_________days

365


1/2 =_________%

50%


1/3=____%

33.30%


1/4=___________________%

25%


2/3=___%

66.60%


25,000 in expanded notation

(2 x 10,000) + (5 x 1000)


3/4=__________%

75%


5 o 3

Less than


a + b = b + a

Commutative Property


a.m

used to show time between midnight and noon


Absolute Value

The distance from 0 on a number line


Acute angle

An angle that measures less than 90 degrees, less than a right angle


addend

a number that is added in an addition problem


Additive Inverse

An example is 7 + (7) = 0


Adjacent

"Close to or next to something


algebraic expression

A mathematical phrase involving a variable or variables, numbers, and operations.


Alternate

"To take turns doing something


Approximately

"Close to; almost exactly.


Associate Property

The addition or multiplication of a set of numbers is the same regardless of how the numbers are grouped.


Associative Property of Addition

The property that states that you can group addends in different ways and still get the same sum


Associative Property of Multiplication

the way that factors are grouped does not change the product


average

the sum of addends divided by the number of addends


benchmark

A reference number that can be used to estimate the size of other numbers. Working with fractions, 0, 1/4, 1/2 are good benchmarks.


Calculate

"To find an answer to something by using math (addition, subtraction, multiplication or division.


CENTIMETER

a metric unit of measure 100 centimeters=1 meter


century

A measure of time equal to 100 years


certain

to be sure or definite


circle

a closed plane figure with all the points the same distance from center


Combination

"To bring things together in a single whole or substance. To unite something.


Commutative Property of Addition

The property that states that when the order of two addends is changed, the sum is the same


Commutative Property of Multiplication

The property that states that when the order of two factors is changed, the product is the same


compatible numbers

Numbers easy to compute mentally.


Complementary angles

Add up to 90 degrees


complementary angles =___degrees

90


Complex

"Difficult to understand. Something that is made up of many connected parts.


composite number

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


Congruent

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


CONGRUENT FIGURES

figures exactly alike in size and shape


Consecutive

"following one right after the other.


Convert

"To change something from one from or shape to another.


cube

a space figure with 6 congruent faces, 8 vertices, and 12 equal edges


cumulative frequency

A running total of items being counted


cup, c

a customary unit of capacity


decade

A measure of time equal to 10 years


decimal number

a number containing a decimal point


decimal point

a dot separating the ones and tenths places in a decimal number


Decrease

"To make something less or smaller.


denominator

the bottom number in a fraction,it shows the number of equal size parts into which the whole is split


Diagram

"A drawing or chart that shows how something works.


difference

the answer to a subtraction problem


digits

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


Disjoint

2 sets with no elements in common. 2 sets A and B are disjoint if their intersection is empty


Distributive Property

The property that states that multiplying a sum by a number is the same as multiplying each addend b the number and then adding the products An example is 8(2 + 6) = 8(2) + 8(6


dividend

number being divided


A number is divisible by 2 if.."

"its units digit is divisible by 2


An integer is divisible by 3 if..."

"the sume of its digits is divisible by 3.


An integer is divisible by 4 if..."

"its last two digits form a number thats divisible by 4.


An integer is divisible by 6 if...."

"its divisible by both 2 and 3.


An integer is divisible by 9 if"

"the sum of its digits is divisible by 9.


divisible

Capable of being divided so that the quotient is a whole number and the remainder is zero


divisor

number you divide by


An integer is divisible by 5 if..."

its units digit is either 0 or 5.


elapsed time

The time that passes from the start of an activity to the end of that activity


Empty Set

a set that has no elements


endpoint

a point at the end of a line segment or ray


equally likely

outcomes having the same chance of happening


equation

A number sentence which shows that two quantities are equal


estimate

To give an approximate value rather the exact answer.


even*even=

even


even*odd=

even


even+even=

even


even+odd=

odd


expanded form

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


expression

A part of a number sentence that combines numbers and operation signs but does not have an equal sign


face

a flat surface on a space figure


fact family

A set of related multiplication and division or addition and subtaction equations, all related +/ or x/ facts that use the same numbers


Factor

Number that divides another number without a remainder


factors

Numbers that are multiplied to get a product


FOOT

unit of measure 12 inches=1 foot


Formula for percentage increase/decrease?

Percentage change = ((difference between new and original)/original )* 100


fraction

a number to show part of a whole object.


frequency

The number of times an event ocurs


frontend digit

the digit in the place with the greatest value


frontend estimation

an estimation made using the frontend digit of a number


GCF

Largest common factor of 2 or more numbers


hexagon

a polygon with 6 sides and 6 vertices


How do you know if number x is divisible by number y?

"If number x is divisible by number y , number y goes into number x evenly.


hundredths

the name of the second place after the decimal point


Identity Property of Addition

The property that states that when you add zero to any number, the sum is that number


Identity Property of Multiplication

The property that states that the product of any number and 1 is that number


improper fraction

a fraction in which the numerator is larger than the denominator  such as 5/2


INCH

unit of measure 12 inches=1 foot


Integers

The set of positive whole numbers, their opposites,(negatives) and zero


Intersection of 2 Sets

elements that are in set A and B


interval

The difference between two numbers on the sale of a graph


inverse operations

2 operations with the opposite effect like multiplication and division Opposite operations that undo each other, such as addition and subtraction or multiplication and division


irrational

any # that can NOT be written in form of fraction


Irrational Numbers

nonterminating, nonrepeating decimals like the square root of 2 or Pi. all nonperfect squares are irrational.


kilogram (kg)

a metric unit of mass


Line

Infinite number of points extending in opposite directions without end


line graph

a graph used to show how data changes over time


LINE OF SYMMETRY

a line that divides a figure into two equal partseach side looks exactly alike


line plot

A graph that shows the frequency of data along a number line


mean

The number found by dividing the sum of the set of numbers by the number of addends


median

the middle number when numbers are arranged from least to greatest


METER

"a metric unit of measure  a metric unit of length/distance


millions

The period after thousands


mirror image

the reverse image of a figure


mixed number

a combination of a whole number and a fraction  is the sum of a the whole number and the fraction


mode

The number (s) or item(s)that occurs with the greatest frequency in a set of data


multiple

The product of a given whole number and another whole number


multistep problem

A problem requiring more than one step to solve


Natural Numbers

numbers as you would count. {1,2,3,...)


numerator

the top number in a fraction; how many equal parts are being considered


obtuse angle

an angle greater than a right angle


octagon

a polygon having eight sides


odd*odd=

odd


odd+odd=

even


Opposities

An example are 3 and 3 because each are three units from 0 on a number line, but in different directions  2 numbers that have a sum of 0


Order of Operations

The rules are to work inside grouping symbols, then multiply and divide in order from left to right, and finally to add and subtract in order from left to right


ORDERED PAIR

two numbers in a specific order used to locate a point on a grid


Origin

Zero point on a number line  (0,0)


ounce (oz)

a customary unit of mass


outcome

a result of a probability experiment


Outlier

A data item that is much higher or much lower than the other numbers


P  24 = 17

41


Parallel Lines

Two lines on a plane that do not intersect and remain the same distance apart


parallelogram

a quadrilateral that has both pairs of opposite sides congruent and parallel


pentagon

a polygon with five sides


period

a group of 3 digits in a number separated by a comma from the other digits


perpendicular

2 lines that intersect and form right angles


plane figure

any 2dimensional figure


plot

to place or draw in, as is "plot" the coordinates


POLYGON

a simple closed figure in a plane formed by three or more line segments  using an ordered pair to locate a point on a grid


prime number

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


Prime Numbers up to 30

A number that has only two factors: 1 and itself


probability

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


product

answer when multiplying


Property of 1 for Division

any number divided by 1 is that number


proportion

"equation that states 2 ratios (fractions) are equal


quadrilateral

a polygon with four sides


quotient

the answer to a division problem


range

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


rational

any # that can be written in form of fraction


Rational Numbers

A number that can be expressed as a fraction or ratio (rational).The numerator and denominator are both integers and can be either positive or negative.


real

all irrational and rational #s


Real Numbers

Rational numbers in union with(in addition to) irrational numbers


rectangle

a quadrilateral with opposite sides congruent and parallel all all angles are at a right angle


regular polygon

a polygon having all sides congruent and all angles congruent


remainder

The amount left over when a number cannot be divided evenly


repeating decimal

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


rhombus

a parallelogram with all sides congruent


right angle

an angle that measures 90 degrees  an angle with the shape of a square corner


rotational geometry

a figure that can be turned or rotated less than 360 degrees about a fixed point so that the figure looks exactly as it did before being turned is said to have rotational symmetry


round

To replace a number with another number that tells about how many or how much


Rounding Numbers

Numbers that are easy to compute mentally


scale

The numbers placed at fixed distances on a graph to help label the graph


scalene triangle

a triangle in which no sides are congruent


second

A small unit of time; 60 seconds = 1 minute


Segment

Part of a line with two endpoints


Set

any collection of objects or elements


side

a ray that is part of an angle


SIMILAR SHAPES

figures that are alike in shape, but may be a different size


similarity

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


Singleton Set

a set having exactly 1 element


Solution Set

set of all elements from the domain that make the statement true.


space figure

a figure with 3 dimensions


sphere

a threedimesional figure with a curved surface that is shaped like a ball


square

a parallelogram with all sides congruent all angles right angles and opposite sides parallel


square number

The product of a number and itself


square root

One of two equal factors of a number


Subset

A is a subset of B IFF every element of A is also in B


sum

answer when adding


sum of angles of square

360


sum of angles of triangle

180


supplementary angles

Add up to 180 degrees


supplementary angles = __degrees

180


survey

A method of gathering information to record data


teaspoon (tsp)

a customary unit of capacity


tenths

the name of the first place after the decimal point


terminating decimal

A decimal with a finite number of digits.


trapezoid

a quadrilateral with 1 pair of parallel sides and 1 pair of sides that are not parallel


trends

On a graph, areas where the data increase, decrease, or stay the same over time


turn (rotation)

a transformation of a figure by turning it


Union of 2 Sets

union of 2 sets A and B is the set of all elements that are in set A or B


variable

A letter or symbol that stands for a number or numbers


What are consecutive integers?

Consecutive simply means in order by either increasing or decreasing size. A set of consecutive integers might look like this: {3,2,1,0,1,2...} A set of consecutive even integers might look like this: {4,2,0,2,4,6...} A set of consecutive m


what are the factors of 15

1, 3, 5


what are the multiples of 6

6, 12, 18, 24...


What are the numbers you add together called?

addend


What does distinct mean?

Distinct is just a mathematical term for 'different'. If a question stipulates that a and b are distinct integers, they can't have the same value. For example, the distinct prime factors of 72 are 2 and 3 because you only want to count one 2 and one 3.


What is a digit?

There are only 10 digits (0 through 9), from which we make an infinite number of numbers. For example, 305 is a threedigit number. 3 is the hundreds digit, 0 is the tens digit, and 5 is the ones or units digit.


What is a factor?

If one number divides evenly into another, then the first number is a factor of the second. For example, 3 is a factor of 12. The pairs of numbers whose product is 12 are: 1 x 12, 2 x 6, 3 x 4. Therefore, the factors of 12 are: {1,2,3,4,6, and 12}.


What is a multiple?

"A multiple of a number is the product of that number and any other whole number.


What is a prime number?

"Prime numbers are divisible by only themselves and 1. By definition, 1 is NOT prime. Also, only positive numbers are prime.


What is a remainder?

"If a number is not divisible by another, there will be a remainder left over.


What is an integer?

An integer is a number that is neither a fraction nor a decimal. Think of integers as counting numbers that you see on a number line. Zero is also an integer


What is the answer of a division problem called?

quotient


What is the answer of a subtraction problem?

difference


What is the answer to a multiplication problem?

product


What is the formula for area of a circle?

"Pi r squared"


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


What is the formula for circumference of a circle?

Pi x D


What is the result of addition?

sum


whole

natural #s and 0


Whole Numbers

Natural numbers plus {0}


word form

a number written in words


xaxis

horizontal number line


YARD

"unit of measure


yaxis

vertical number line


Zero Property of Multiplication

The property that states that the product of 0 and any number is 0


benchmark

A reference number that can be used to estimate the size of other numbers. Working with fractions, 0, ¼, ½ are good benchmarks


base ten number system

This is our common number system. It’s also called the “decimal” system.
It uses ten symbols (or digits) to count. Digit also means “finger”, and we have 10 fingers. The digit zero holds the place for an empty column, and the digits 1 to 9 tell how many ones, tens, hundreds, etc. are in any particular column. 

Decimal / Decimal Fraction

To write numbers as decimals we use only 10 and powers of ten as denominators.
Writing fractions this way saves us from writing the denominators because they are understood. When we write 375/1,000 as a decimal (0.375) the denominator of 1,000 is understood 

Equivalent fractions

Fractions equal in value, but may have different numerators and denominators.
2/3 and 14/21 are equivalent 

percent

A percent is the number of parts out of 100 of something. For example, a quarter (25 cents) is 25 percent of a dollar (100 cents). fraction 25/100 is 25%. To convert a decimal number, like .72 to a percent, you just multiply it by 100. So the decimal .72 becomes (100 X .72) = 72 percent.


ratio

The ratio of 2 numbers is the first number divided by the second number. For example, the ratio of 8 to 4 is 2.


Unit fraction

A unit fraction is a fraction with a numerator of 1.
Examples of unit fractions include 1/2, 1/3, 1/12. 