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ATI TEAS > Math Vocabulary > Flashcards

Math Vocabulary Flashcards

1
Q

Whole Number

A

The numbers used in counting and zero; 0,1,2,3,4,5,6,…

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2
Q

Volume

A

The amount of space taken up by a three-dimensional shape

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3
Q

Variation Constant

A

The positive constant K in the equation of variation. Also called the constant of proportionality

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4
Q

Variable Terms

A

Expression consisting of nonzero numbers multiplying a variable or variables

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5
Q

Variable

A

A letter often x, y, or z that stands for an unspecified quantity

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6
Q

Unit Rate

A

A rate which shows how many units of one quantity( in the numerator) corresponds to one unit of the second quantity (in the denominator), such as miles/hour

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7
Q

Unit Conversions

A

Calculating equivalent values between systems of measurement

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8
Q

Unimodal

A

Describes a distribution of data with a single clear peak

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9
Q

Terminate

A

To end

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10
Q

Table

A

A set of data displayed in rows and columns

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11
Q

Surface Area

A

The total area of a three dimensional object’s surface

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12
Q

Sum

A

The result of an addition

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13
Q

Subtraction

A

Removing one number from another; the inverse of subtraction

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14
Q

Subtend

A

Let S be an arc of a circle with center O. Draw radii from O to each endpoint of S, and measure the Angle between the radii. Then S is said to subtend angle from 0.

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15
Q

Standard Deviation

A

A quantity that indicates the extent to which data varies from the mean

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16
Q

Square Units

A

Units used to measure area. One square unit is the area of a square with sides that measure 1 unit

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17
Q

Spread

A

The range of values in a data distribution

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18
Q

Solve

A

Find the answer

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19
Q

Slope

A

The rate of change, or the steepness and direction, of a line on a coordinate plane.

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20
Q

Simplify

A

Reducing a fraction or an expression to a simpler form by actions such as cancellation of common factors and regrouping of terms with the same variable

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21
Q

Semicircle

A

A half circle

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22
Q

Scatterplot

A

A graph using dots to represent data points

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23
Q

Scale

A

Ratio of graphical representation to actual size

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24
Q

Rounding

A

Simplifying a number by removing decimal places or changing those places to zero

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25
Q

Round- off-error

A

Rounded numbers are not perfectly accurate; there is a certain amount of error involved when using them. When using rounded numbers in repeated calculations, these errors can build up and sometimes cause highly inaccurate results

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26
Q

Right Triangle

A

A triangle with a right angle

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27
Q

Repeat

A

Do again

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28
Q

Reciprocal

A

1 divided by the original number, or, for a nonzero fraction a/b, the reciprocal is b/a; the reciprocal of a nonzero fraction is a/b is b/a. The product of a number and its reciprocal

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29
Q

Real Number

A

Rational and irrational numbers together

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30
Q

Rational Number

A

A number that can be expressed as a fraction

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31
Q

Ratio

A

A comparison of the sizes of two numbers

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32
Q

Rate of Change

A

A rate that describes how one quantity changes in relation to another

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33
Q

Rate

A

A ratio that compares quantities of two units of measure

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34
Q

Range

A

The difference between the highest and lowest values in a set

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35
Q

Random Variable

A

Essentially, a rule that assigns a number to a certain event

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36
Q

Quotient

A

The result of a division

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37
Q

Quadrants

A

In a Cartesian graph of a plane, the four quarters into which the plane is divided by the two axes. They are labeled with Roman numerals; Quadrant I is in the upper right quarter, and the numbering proceeds from there clockwise

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38
Q

Proportion

A

An equality of two ratios

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39
Q

Product

A

The result of a multipication

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40
Q

Probability

A

The likelihood that an event will occur

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41
Q

Prime Number

A

A nonzero whole number that has only itself and 1 as factors; 2 is the lowest prime number

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42
Q

Point on A Graph

A

The location of a value expressed as (x,y)

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43
Q

Place Value

A

Numerical value defined by position

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44
Q

Pie Chart

A

A circular graph with slices suggestive of a pie; the larger the slice, the greater the quantity being represented

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45
Q

Perimeter

A

The distance around a two-dimensional shape

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46
Q

Percentage Increase

A

The positive difference between two numbers, divided by the first number , multiplied by 100

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47
Q

Percentage Decrease

A

The negative differences between two numbers, divided by the first number, multiplied by 100

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48
Q

Percent

A

Parts per 100

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49
Q

Pythagorean Theorem

A

A mathematical theorem that states for any right triangle , the square of the hypotenuse equals the sum of the square of the legs

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50
Q

Outlier

A

A data point that distinctly separate from other data; unexpected value

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51
Q

Origin

A

In a Cartesian graph, the point (0,0)(for a plane) or (0,0,0)(for a space). It is found at the intersection of the axes

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52
Q

Ordering Numbers

A

Putting numbers in order from lowest to highest

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53
Q

Ordered Triple

A

An order set of three numbers usually enclosed in parentheses

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54
Q

Ordered Pair

A

An ordered pair set of two numbers, usually enclosed in parentheses. by ordered is meant that the order in which the numbers appear is important. For example (1,2) ia not considered the same (2,1)

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55
Q

Order of Operations

A

The sequence of operations that must be followed to simplify an expression

56
Q

Operation

A

A mathematical action

57
Q

Numerator

A

The top number of a fraction

58
Q

Non-negative

A

Greater than or equal to zero. (positive or zero)

59
Q

Multiplication Principle

A

In a true equation a=b, ac=bc is also true for any number c

60
Q

Multiplication

A

Addition of a number to itself a specified number of times

61
Q

Multiples of a number

A

A number multiplied by various integers

62
Q

Mixed Numbers

A

A number formed by an integer and a fraction

63
Q

Metric System

A

International System of Units based on the power of 10

64
Q

Measures of Central Tendency

A

Means is what is commonly known as the average; median is the middle value; and mode is the number repeated most often

65
Q

Linear Units

A

A unit used to measure length

66
Q

Line Graph

A

A graph using lines or line segments to represent data or trends

67
Q

Like Terms

A

Terms in expression with the same variable(s) and power(s). The number multiplying the variables need not be the same

68
Q

Length

A

The measure from end to end

69
Q

Legend

A

An explanation of figures used in a map or chart

70
Q

Leg

A

One or two sides of a right triangle not the hypotenuse

71
Q

Least Common Multiple

A

The LCM of two nonzero whole numbers is the smallest number that is a multiple of both

72
Q

Least Common Denominator

A

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

73
Q

Isolator

A

To manipulate an algebraic equation, using the principles of algebra, in order to get the variable alone on one side of the equation. Also called the isolating of the variable

74
Q

Irregular Shape

A

A shape in which not all sides or angles are equal

75
Q

Irrational Number

A

A real number that cannot be expressed as a rational number, that is, by terminating or repeating decimal

76
Q

Inverse Variable

A

This occurs when an increase or decrease in one variable produces a decrease, respectively, in another variable

77
Q

Inverse Arithmetic Operations

A

Mathematical operations that undo each other

78
Q

Integer

A

Whole numbers and their negatives;…, -3,-2,-3,0,1,2,3…

79
Q

Inequality Symbols

A

Less than (<) ,greater than (>) ,less than or equal to( ≤) less than or equal to, (≥)greater than or equal to.

80
Q

Inequality

A

A mathematic statement with two expressions which do not have the same value

81
Q

Independent Variable

A

A variable that determines the value of another variable

82
Q

Hypotenuse

A

The side of a right triangle opposite its right angle

83
Q

Graph

A

A drawing which represents relationships between numbers or data

84
Q

Front-end

A

Disregard every number after the first

85
Q

Fraction

A

A number expressed as a numerator and denominator

86
Q

Factoring

A

Breaking down a number into its components under multiplication; e.g., 10=125

87
Q

Extraneous

A

Irrelevent

88
Q

Expression

A

A finite string of mathematical symbols (numbers, operations, variables) that are grouped to show a value

89
Q

Expected Value

A

The most likely value of a random variable

90
Q

Estimation

A

A rough calculation of numbers

91
Q

Erroneous

A

Incorrect

92
Q

Equation of Variable

A

The equation of direct variation, y=kx, or inverse variation, y=k/x

93
Q

Equation

A

A mathematical statement that indicates the equality of two expressions

94
Q

Divisor

A

When a division is written as a fraction , this is the denominator

95
Q

Division

A

Separation of numbers into parts; the inverse of multiplication

96
Q

Divisible

A

A number is divisible by another number if it is a multiple of that number , or if division by it results in a zero remainder

97
Q

Dividend

A

The number being divided in a division. When a division is written as a fraction, this is the numerator

98
Q

Distributive Property

A

For three numbers a ,b ,c , a(b + c)=ab + ac

99
Q

Direct Variation

A

This occurs when an increase or decrease in one variable produces an increase or decrease, respectively, in another variable

100
Q

Dimensional Analysis

A

Using the technique of multiplication by one to convert rates

101
Q

Difference

A

The result of a subtraction

102
Q

Dependent Variable

A

A variable that depends on at least one other variable

103
Q

Denominator

A

The bottom number of a fraction

104
Q

Decimal Place Value

A

Power of ten by position away from the decimal point. Going left; units, tens, hundreds, etc. Going right; tenths, hundredths, thousandths, etc.

105
Q

Decimal

A

A number expressed in powers of ten.

106
Q

Data Trend

A

General tendency of numbers in a set

107
Q

Cubic Unit

A

Units used to measure volume. One cubic unit is the volume of a cube with sides that measure 1 unit

108
Q

Covariance

A

The way two variables change together

109
Q

Correlation

A

The way two variables change together, also known as covariation

110
Q

Conversion Factor

A

The number used to multiply or divide to convert from one value to another

111
Q

Conversion

A

Changing one value or unit of measurement to another that is equivalent

112
Q

Contextual

A

Related to surrounding content

113
Q

Constant of proportionality

A

The ratio between two quantities

114
Q

Constant

A

A number that is not attached to or does not multiply a variable

115
Q

Composite Number

A

A non zero whole number not equal to 1 that is not prime

116
Q

Compatible Numbers

A

Numbers that are conductive to easy mental computations

117
Q

Common Denominators

A

In a set of two or more fractions, an integer that is divisible by each denominator. That is, a multiple of all of the denominators

118
Q

Combine Like Term

A

Simplifying an expression by using the distributive property

119
Q

Coefficient

A

The number being multiplied by a variable

120
Q

Clustering

A

Noting that a group of members are close to a certain value

121
Q

Clear the Equation of the Fractions

A

Multiplying both sides of an equation with fractions by a common denominator of all of the fractions to simplify the equation

122
Q

Clear the Equation of Decimals

A

Multiplying both sides of an equation with decimals by a power of ten that will result in all-integer numbers in the equation

123
Q

Circumference

A

The length around a circle

124
Q

Chart

A

Information in the form of a table or graph

125
Q

Cancellation

A

Ignoring factors of 1 in multiplication of fractions

126
Q

Cartesian Coordinate

A

An ordered pair or ordered triple used to specify a point on a plane or in a space, respectively

127
Q

Bivariate

A

Containing two variables

128
Q

Bimodal

A

Describes a distribution of data with two clear peaks

129
Q

Bar Graph

A

A graph using vertical or horizontal bars to represent quantities

130
Q

Axis

A

A reference line, often a number line, for measurement of coordinates. In a Cartesian graph, there are two axes for a plane (usually x- and y-axis) and three axes for a space (usually x-, y- and z- axis) all set at right angles to each other

131
Q

Area

A

The amount of space inside a two dimensional boundary

132
Q

Arc

A

Part of the circumference of a circle.

133
Q

Algebraic Equation

A

A mathematical equation that includes one or more variables

134
Q

Additive Inverse

A

The additive inverse of a is -a; that is, it is a number which, when added to a, yields zero

135
Q

Addition Principle

A

In a true equation a=b, a + c= b + c is also true for any number c

136
Q

Absolute Value

A

The absolute value of a number x, symbolized |x|, is the distance from x to 0 on a number line. It can also be defined as |x|= x if x ≥ 0, or =-x if x < 0

137
Q

Absolute Difference

A

The absolute value of the difference of two numbers

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