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132 Cards in this Set
 Front
 Back
acute angle

an angle whose measure is greater than 0 degrees and less than 90 degrees


acute triangle

a triangle with three acute sides


algebraic expression

an expression that contains a variable
m + 2 

angle

two rays with a common endpoint called a vertex


area

the number of square units needed to cover a region


average (mean)

the sum of the addends divided by the number of addends


axis

either the horizontal line (called x) or the vertical line (called y) that form the base lines of the graph.


bar graph

a graph that uses horizontal or vertical bars to represent data


base (exponential notation)

it is a number that is used as a repeated factor


base (geometry)

a face on which a figure rests


circle

a closed plane figure with all the points of a circle the same distance from a point called the center


circle graph (pie graph)

a graph that uses a circle divided into parts to represent the parts of a set of data while the circle represents the whole set of data


circumference

the length of (or distance around) a circle  the perimeter of a circle


common denominator

a number that is a multiple of each deonominator in a given set of fractions


common factor

a number that is a factor of two or more given numbers


compatible numbers

numbers that are easy to compute


composite numbers

a whole number greater than one that has more than two factors
ex. 4, 6, 8, 9, 10 

cone

a space figure with one circular base and one vertex


congruent

two figures that are identical  the same size and same shape


coordinate

a number used to locate a point on a number line or coordinate grid


coordinate grid

a device for locating points in a plane by means of ordered number pairs or coordinates.


cube

a space figure with six congruent square faces


cylinder

a space figure with two parallel circular bases


decimal

a number with one or more digits to the right of a decimal point, with those digits representing parts of a whole


denominator

the number of equal parts into which the whole is divided


diameter

the diameter of a circle is any line segment passing through the center of the circle whose endpoints are on the circle


difference

the answer for subtraction


digit

any of the symbols used to write numbers: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9


dividend

in division, the total before sharing


divisible

a number is divisible by another number if the remainder is 0 after dividing


divisor

if a number n is divisible by a number x, then x is a divisor of n


double bar graph

a graph that uses pairs of bars to compare information


edge

a segment that is the intersection of two faces of a space figure


elapsed time

an amount of time that has passed


equilateral

a polygon with all sides the same length


equalateral triangle

a triangle that has three sides of the same length


equivalent fractions

fractions that have different numerators and denominators, but name the same number


estimate

an approximate rather than an exact answer


expanded form

a number written as the sum of the values of its digits 
500 + 50 + 5 is the expanded form of 555 

exponent

it indicates how many times the number 2 is used as a factor


exponential notation

a shorthand way of representing repeated multiplication of the same factor.


face

a flat surface of a space figure


factor

any numbers that are multiplied together to give a product


factor tree

a diagram used to show the prime factors of a number


formula

a rule for finding the value of something


fraction

a number that names part of a whole
ex. 1/2, 2/3 

frequency table

a table used to record and summarize the number of times something occurs


greatest common factor(GCF)

the greatest common number that is a factor of each of two or more numbers


hexagon

a polygon with 6 sides


improper fractions

a fraction in which the numerator is greater than or equal to the denominator


intersecting lines

lines that have exactly one point in common


interval

the distance between points on the scale of a graph


inverse operations

two operations that have the opposite effect  addition and subtraction and multiplication and division are inverse operations


isosceles triangle

a triangle with two congruent sides


landmarks

a measure of data  emphasized in this program include median, mode, maximum, and range


least common denominator

the least common multiple of the denominators of two or more fractions


least common multiple

the least number, other than zero, that is a multiple of each of two or more numbers


line graph

a graph used to show changes over a period of time


line of symmetry

a line that divides a figure, when folded along the lines into two congruent parts


line segment

a part of a line having two endpoints


lowest terms

a fraction is in lowest terms if the greatest common factor of the numerator and the denominator is 1


maximum

the largest amount; the greatest number in a set of data


median

the middle value in a set of data when the data are listed in order from smallest to largest


minimum

the smallest amount; the least number in a set of data


mixed numbers

a number that has a whole number part and a fraction part


mode

the value or category that occurs most often in a set of data


multiple

the product of a whole number and any other whole number


negative number

they are numbers to the left of the zero


number line

a line that shows numbers in order


number sentence

an equation written in standard form
ex. 3X4 = 12 

numerator

the number above the fraction bar in a fraction


obtuse angle

an angle that is larger than 90 degrees but less than 180 degrees


obtuse triangle

a triangle with one obtuse angle


octagon

a polygon with 8 sides


opposite of a number

on a number line, a number and its opposite are the same distance from zero
ex. +3 is opposit of 3 

ordered number pair

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


parallel

always the same distance apart, no matter how far extended; never meeting


parallelogram

a quadrilateral that has two pairs of parallel sides and equal opposite sides


partial products

when multiplying two 2digit numbers, the product after multiplying by ones or the product after multiplying by tens


pentagon

a polygon with 5 sides


percent

a ratio whose second term is 100  percent means parts per hundred


perimeter

the distance around a polygon or figure


perpendicular

two rays, lines, or line segments that form right angles are said to be perpendicular to each other


pictograph

a graph that represents numerical data using pictures


place value

the value determined by the position of a digit in a number


point

an exact location in space


polygon

a closed figure with line segments as sides


powers of 10

a whole number that can be written using only 10's as factors


prime factorization

writing a number as the product of prime factors


prime numbers

a whole number greater than 1 with only two factors  itself and 1


prism

a space figure with two parallel and congruent bases that are polygons


probability

the ratio of the number of favorable outcomes to all outcomes of an experiment


product

an answer in multiplication


proper fraction

a fraction in which the numerator is less than the denominator


pyramid

a space figure whose base is a polygon and whose faces are triangles with a common vertex


quadrilateral

a polygon with four sides


quotient

the answer in division


ratio

a comparision by division of two counts or measures with the same unit


radius

a line segement from the center of a circle to any point on the circle


range

the difference between the greatest (maximum) and the least (minimum) numbers in a set of data


ratio

a comparasion of qualities


ray

a part of a line that has one endpoint and goes on and on in one direction


rectangle

a parallelogram with four right angles


rectangular prism

a space figure whose faces are all rectangles


reflection

a change in position that produces a mirror image of a figure


remainder

the number left over when a set of objects is sepearated into equal groups or shared equally


rhombus

a parallelogram with all sides congruent


right angles

any 90 degree angle


right triangle

a triangle with one right angle


rotation (turn)

a change of position that rotates a figure around a point


scalene triangle

a triangle that has no sides of the same length


similar figures

figures that have the same shape but not necessarily the same size


simplest form

a fraction in which the numerator and denominator have no common factor except 1


sphere

a space figure with all points an equal distance from the center


square

a rectangle with all sides congruent


square unit

a unit used to measure area


standard form

a number written with commas separating groups of three digits


straight angle

an angle what measures 180 degrees


sum

the answer in addition


symmetry

a figure is symmetric if it can be folded along a line so that the two resulting parts match exactly


transformation

the turning, sliding, or flipping of a plane figure


translation

a change in position that moves a figure up, down, or over


trapezoid

a quadrilateral with only one pair of opposite sides parallel


tree diagram

a diagram used to organize outcomes of an experiment


triangle

a polygon with three sides


triangular prism

a prism whose bases are triangles


unit price

the rate; price per unit of measure


unlike denominator

denominators that are different, as in 1/2 and 2/3


variable

a symbol (usually a letter) that can have a range of numerical values in a given problem or discussion


vertex

the point of intersection of two sides of a polygon  the point of intersection of three edges of a space figure


volume

the number of cubic units that fit inside a space figure


whole numbers

the numbers in a set (0,1,2,3...)
