Saxon 6/5 Vocabulary

Front 1

acute angle

Back 1

An angle whose measure is no more than 0 degrees and no less than 90 degrees.
*An acute angle is smaller than both a right angle and an obtuse angle.

Front 2

acute triangle

Back 2

A triangle whose largest angle measures less than 90 degrees.

Front 3

addend

Back 3

Any one of he numbers added in an addition problem, excluding the answer.

Front 4

algorithm

Back 4

Any process for solving a mathematical problem.
*In addition algorithm we add the ones first, then the tens, and then the hundeds.

Front 5

a.m.

Back 5

The period of time from midnight to just bfore noon.

Front 6

angle

Back 6

The opening that is formed when twolines, line segmens, or rays intersect.

Front 7

area

Back 7

The number of square units needed to cover a surface.

Front 8

arithmetic sequence

Back 8

A sequence in which each term is found by adding a fixed amount to the previous term.

Front 9

array

Back 9

A rectangular arrangement of numbers or symbols in columns or rows.

Front 10

associative property of addition

Back 10

The grouping of addends does not affect their sum. In symbolic form, a +(b + c) = (a+ b) + c. Unlike addition, subtraction is NOT associative.

Front 11

associative property of multiplication

Back 11

The grouping of factors does not affect their product. In symbolic form, a x (b x c) = (a x b) x c. Unlike multiplication, division is NOT associative.

Front 12

average

Back 12

The number found when the sum of two or more numbers is divided by th number of addends in the sum; also called mean.

Front 13

bar graph

Back 13

A graph that uses rectangles (bars) to show numbers or measurements.

Front 14

base

Back 14

1) The lower number in an exponential expression.
2) A designated side or face of a geometric figure.

Front 15

capacity

Back 15

The amount of liquid a container can hold.

Front 16

Celcius

Back 16

A scale used on some thermometers to measure temperature.

Front 17

center

Back 17

the point inside a circle from which all points on the circle are equally distant.

Front 18

century

Back 18

A period of one hundred years.

Front 19

chance

Back 19

A way of xpressing the likelihood of an event; the probability ofan event expressed as a percent.

Front 20

circle

Back 20

A closed, curved shape in which all points on the shape are th same distance from its center.

Front 21

circle graph

Back 21

A graph made up of a circle divided into sectors.
Also called a pie char or a pie graph.

Front 22

circumference

Back 22

The distance around a circle; the perimeter of a circle.

Front 23

cluster

Back 23

A group of data points that are very close together.

Front 24

common denominators

Back 24

Denominators that are the same.

Front 25

common fraction

Back 25

A fraction with whole-number terms.

Front 26

comon year

Back 26

A year with365 days; not a leap year.

Front 27

commutative property of addition

Back 27

Changingthe order of addends does not change their sum. In symbolic form, a + b = b + a. Unlike addition, subtravtion is NOT commutative.

Front 28

commutative property of multiplication

Back 28

Changing the order of actors does not change their product. In symbolic form, a x b = b x a. Unlike multiplication, division is NOT commutative.

Front 29

comparative bar graph

Back 29

A method of displaying data, usually used to compare two or more related sets of data.

Front 30

composite number

Back 30

A counting number greater than 1 that is divisible by a numbe other than itself and 1. Every commposite number cab be expressed as a product of two or more prime numbes.

Front 31

cone

Back 31

A three-dimensional solid with a circular base and a single vertex.

Front 32

congruent

Back 32

Having the same size and shape.

Front 33

cordinate(s)

Back 33

1) A number used to locate a point on a number line.
2) a pair of numbers used to locate a point on a coordinate plane.

Front 34

coordinate plane

Back 34

A grid on which any point can be identified by its distances from the x- and the y-axes.

Front 35

counting numbers

Back 35

The numbers used to count; the numbers in this sequence: 1, 2, 3, 4, 5, 6, 7, ...
*0.98 and 1/2 are NOT counting numbers.

Front 36

cude

Back 36

A three-dimensional solid with six square faces. Adjacent faces are perpendicular and opposite faces are parallel.

Front 37

cubic unit

Back 37

A cube with edges of designated length. Cubic units are used to measure volume.

Front 38

cylinder

Back 38

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

Front 39

data (plural)
datum (singular)

Back 39

Information gathered from observations or calculations.

Front 40

decade

Back 40

A period of ten years.

Front 41

decimal number

Back 41

A numeral that contains a decimal point.

Front 42

decimal places

Back 42

Places to the right of the decimal point.
*5.47 has two decimal places.
**6.3 has one decimal place.
***8 has no decimal place.

Front 43

decimal point

Back 43

A symbol used to separate the ones place from the tenths place in decimal numbers.

Front 44

degrees

Back 44

1) A unit for measuring angles.
2) A unit for measuring temperature.

Front 45

denominator

Back 45

The bottom number of a fraction; the number thattells how many parts are in a whole.

Front 46

diameter

Back 46

The distance across a circle through its center.

Front 47

difference

Back 47

The result of subtraction.

Front 48

digit

Back 48

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

Front 49

distributive property

Back 49

A number times the sum of two addends is equal to he sum of that same nmber times each individual addend: a x (b + c) = (a x b) + (a x c).
*Multiplication is distributive over addition.

Front 50

dividend

Back 50

A number that is divided.

Front 51

divisible

Back 51

Able to be divided by a whole number without a remainder.

Front 52

division

Back 52

An operation that separates a number into a given number of equal parts or into a number of parts of a given size.

Front 53

divisor

Back 53

A numbe by which another number is divided.

Front 54

double-line ggraph

Back 54

A method of displaying a set of data, oftn used to compare two performances over time.

Front 55

edge

Back 55

A line segment formed where two faces of a solid intersect.

Front 56

elapsed time

Back 56

The difference between a starting time and an ending time.

Front 57

endpoint

Back 57

Apoint at which a line segment ends.

Front 58

equation

Back 58

A number sentence that uses the symbol "=" to show that two quantities are equal.

Front 59

equalateral triangle

Back 59

A triangle in which all the sides are the same length.

Front 60

equivalent fractions

Back 60

Fractions that name the same amount.

Front 61

estimat

Back 61

To find an aproximate value.

Front 62

evaluate

Back 62

To find the value of an expression.

Front 63

even numbers

Back 63

Numbers that can be divided by 2 without a remainder; the numbers in this sequence: 0, 2, 4, 6, 8, 10,...
*Even numbers have 0, 2,4, 6, or 8, in the ones place.

Front 64

event

Back 64

An outcome or group of outcomes in an experiment involving probability.

Front 65

exact number

Back 65

A number that has not been rounded.

Front 66

expanded form

Back 66

A way of writing a number that shows the value of ach digit.
*The expanded form of 234 is 200 + 30 + 4.

Front 67

expanded notation

Back 67

A way of writing a number as the sum of the products of the digits and the place value of its digits.
*The expanded notation of 6,753 is (6 x 1,000) + (7 x 100) + (5 x 10) + (3 x 1).

Front 68

experiment

Back 68

To test or illustrate a rule.

Front 69

exponent

Back 69

The upper number in an expotential expression; it shows how many times the base is to be used as a factor.

Front 70

expotential expression

Back 70

An expression that indicates that the base is to be used as a factor the number of times shown by the exponent.

Front 71

face

Back 71

A flat surface of a geometric solid.

Front 72

fact family

Back 72

A group of three numbers related by addition and subtraction or by multiplication and division.

Front 73

factor (as a noun)

Back 73

1) Noun: Any oe of the numbers multiplied in a multiplication problem.
2) Noun: A whole number that divides into another whole number without a remainder.

Front 74

factor (as a verb)

Back 74

To write as a product of factors.

Front 75

Fahrenheit

Back 75

A scale used on some thermometers to measure temperature.

Front 76

fraction

Back 76

A number that names a part of a whole.

Front 77

frequency

Back 77

The number of times an evnt or outcome occurs.

Front 78

frequency table

Back 78

A table that is used to tally and display the number of times an eventor outcome occurs.

Front 79

function

Back 79

A rule for changing an "in-number" to an "out-number."

Front 80

geometric sequence

Back 80

A sequence in which each term is found by multiplying the previous term by a fixed amount.

Front 81

geometric solid

Back 81

A shape that takes up space.

Front 82

geometry

Back 82

A major branch of mathematics that deals with shapes, sizes and other properties of figures.

Front 83

graph

Back 83

1) Noun: A diagram that shows data in an organized way.
2) Verb: To draw a point, line, or curve on a coordinate plane.

Front 84

greastest common factor (GCF)

Back 84

The largest whole number that is a factor of two or more given numbers.

Front 85

histogram

Back 85

A method of displaying a range of data. A histogram is a special type of bar graph that displays data in intervals of equal size with no space between bars.

Front 86

horizontal

Back 86

Side to side; perpendicular to vertical.

Front 87

icon

Back 87

A symbol used in a pictograph to represent data.

Front 88

identity property of addition

Back 88

The sum of any number and 0 is equal to the initial number. In symbolic form, a + 0 = a. The number 0 is referred to as the additive identity.

Front 89

identity property of multiplication

Back 89

The product of any number and 1 is equal to the initial number. In symbolic form, a x 1 = a. The number 1 is referred to as the multiplicative identity.

Front 90

improper fraction

Back 90

A fraction with a numerator greate than or equal to the denominator.

Front 91

integers

Back 91

The set of counting numbers, their opposites, and zero; the members of the set (...,-2, -1, 0, 1, 2,...)

Front 92

International System of Units

Back 92

*See metric system.

Front 93

intersect

Back 93

To share a pont or points.

Front 94

intersecting lines

Back 94

Lines that cross.

Front 95

inverse operations

Back 95

Operations that "undo" one another.

Front 96

invert

Back 96

To switch the numerator and the denominator of a fraction.

Front 97

isosceles triangle

Back 97

A triangle with at least two sides of equal length.

Front 98

leap year

Back 98

A year with 366 days; not a common year.
*In a leap year, February has 29 days.

Front 99

least common multiple (LCM)

Back 99

The smallest whole number that is a multiple of two or more given numbers.

Front 100

legend

Back 100

A notation on a map, graph, or diagram that describes the meaning of the symbols and/or the scale used.

Front 101

length

Back 101

A measure of the distance between any two points.

Front 102

line

Back 102

A straight collection of ponts extending inopposite directions without end.