Math Definitions

Front 1

An angle that has a measure greater than 0 degrees and less than 90 degrees

Back 1

acute angle

Front 2

A triangle in which each of the three angles measures less than 90 degrees

Back 2

acute triangle

Front 3

a number that is added in an additionn problem

Back 3

addend

Front 4

an ordered list of numbers in which the same number is added to the previous term to get the following term

Back 4

addition sequence

Front 5

the addition of the opposite of a number; used to replace subtraction

Back 5

algebraic addition

Front 6

before noon (ante meridiem)

Back 6

A.M.

Front 7

an opening between two intersecting lines, rays, or segments

Back 7

angle

Front 8

the digits (0, 1, 2, 3 ,4 5, 6, 7, 8, and 9) used in combination with place value to express numbers. For example: 475

Back 8

arabic numerals

Front 9

the number of square units of a given size that cover the surface of a figure

Back 9

area

Front 10

the amount found by dividing the sum of a set of numbers by the number of numbers in teh set, also known as arithmetic average or mean

Back 10

average

Front 11

in a triangle or parallelgram, the side from which the height of the trianlge or parallelogram is measured.

Back 11

base

Front 12

one of the scales used on a thermometer to measure temperature. on this scale, water boils at 100 degrees C and freezes at 0 degrees C. normal body temperature is 37 degrees C

Back 12

Celcius scale

Front 13

one hundred years

Back 13

century

Front 14

the likelihood that something will happen, expressed as a precentage.

Back 14

chance

Front 15

a round graph in which every point on the graph is the same distance from a center point

Back 15

circle

Front 16

the distance around a circle, also known as the perimeter of a circle

Back 16

circumference

Front 17

a number shared by two or more sets, as in common factor, common multiple, and common denominator

Back 17

common number

Front 18

to deermine whether one number or expression is greater than, less than, or equal to another number or expression.

Back 18

compare

Front 19

a tool that aids in teh drawing of circle, as well as in other geometric applications.

Back 19

compass

Front 20

a number that has more than two factors

Back 20

composite

Front 21

a three-demensional solid with a circular base and a single vertex

Back 21

cone

Front 22

a set of figures that have th same shape and size. also, angles or line segments that have the same measure.

Back 22

congruent

Front 23

a graphy of two perpendicular number lines that have scale marks extended to form a grid on which to plot points

Back 23

coordinate plane

Front 24

a paired set of numbers like (3, -2) that indicates the location of a point on a coordinate plane. the first number shows the horizontal diection and distance from the origin (on the x-axis) and the second number shows the vertical direction and distance from the origin (on the y-axis)

Back 24

coordinates

Front 25

the numbers in this sequence: 1, 2, 3, 4, 5, ...

Back 25

counting numbers

Front 26

the result of taking a pair of fractions and multiplying the numerator of the first fraction by the denominator of the second fraction and vice versa

Back 26

cross products

Front 27

a three-dimensional solid with six square faces. Adjacent faces are perpendicular, and opposite daces are parallel.

Back 27

cube

Front 28

a three-dimensional solid with two circular bases, that are opposite and parallel to each other

Back 28

cylinder

Front 29

ten years

Back 29

decade

Front 30

all of the place values to the right of the decimal point

Back 30

decimal places

Front 31

a period used to separate the ones' place from teh tenths' place

Back 31

decimal point

Front 32

the unit used to measure angles. also the symbol usde to denote unit divisions on a temperature scale

Back 32

degree

Front 33

the bottom number of a fraction, designating the number of equal parts in a whole

Back 33

denominator

Front 34

the distance across a circle through the cener of the circle

Back 34

diameter

Front 35

the result of subtraction

Back 35

difference

Front 36

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

Back 36

digits

Front 37

the number that is divided in a division problem

Back 37

dividend

Front 38

the ability to be divided without a remainder; for example, 6 is ________ by 1, 2, 3, and 6

Back 38

divisible

Front 39

the number by which another number is divided

Back 39

divisor

Front 40

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

Back 40

digits

Front 41

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

Back 41

digits

Front 42

the number that is divided in a division problem

Back 42

dividend

Front 43

the ability to be divided without a remainder... for example 6 is _______ by 1, 2, 3, and 6

Back 43

divisible

Front 44

the number by which another number is divided

Back 44

divisor

Front 45

a line at which tow faces of a solid come together

Back 45

edge

Front 46

the points at which a line segment ends

Back 46

endpoints

Front 47

a symbol that indicates that two numbers or expressions are equivalent

Back 47

equals sign

Front 48

a triangle in which all three sides and all three angles are equal in measure

Back 48

equilateral triangle

Front 49

expressions that have the same value; for example, 2/4 is _____ to 1/2

Back 49

equivalent

Front 50

to roughly determine a size or value; to calculate approximately using rounded numbers

Back 50

estimate

Front 51

a triangle in which all three sides and all three angles are equal in measure

Back 51

equilateral triangle

Front 52

expressions that have the same value; for example 2/4 is _______ to 1/2

Back 52

equivalent

Front 53

to roughly determine a size or value, to calculate approximately useing rounded numbers

Back 53

estimate

Front 54

those numbers that can be divided by 2 without a remainder. the digit in the ones' place of an ___ ___ is 0, 2, 4, 6, or 8

Back 54

even numbers

Front 55

the probability of an event occurring as determined by data collection

Back 55

experimental probability

Front 56

to roughly determine a size or value, to calculate approximately useing rounded numbers

Back 56

estimate

Front 57

those numbers that can be divided by 2 without a remainder and teh digit in the ones' place of it is 0, 2, 4, 6, or 8

Back 57

even numbers

Front 58

the probability of an event occurring as deermined by data collection

Back 58

experimental probability

Front 59

a number that indicates repeated multiplication of a base

Back 59

exponent

Front 60

a flat surface of a solid

Back 60

face

Front 61

sets of three numbers which can be formed into two addition facts and two subtraction facts, or two muiltiplications facts adn two division facts

Back 61

fact families

Front 62

sets of three numbers which can be formed into two addition facts and two subtraction facts, or two muiltiplications facts adn two division facts

Back 62

fact families