Math Academic Vocabulary Flashcards
(160 cards)
1
Q
an angle measuring less than 90 degrees
A
acute angle
2
Q
numbers that are added
A
addend
3
Q
the figure made by 2 rays that extend from a common endpoint
A
angle
4
Q
the number of square units needed to cover a surface
A
area
5
Q
an arrangement of objects in equal rows and columns
A
array
6
Q
a graph that uses horizontal or vertical bars to represent data
A
bar graph
7
Q
a special face or pair of faces on a 3-dimensional figure
A
base
8
Q
a measure of the amount of liquid a container will hold
A
capacity
9
Q
a metric unit used to measure length
A
centimeter (cm)
10
Q
a diagram that illustrates information in the form of a table, graph, or picture
A
chart
11
Q
a figure that begins and ends at the same point
A
closed figure
12
Q
pairs of numbers that can be computed mentally (e.g. 23+ 27 is close to 25+25, so the estimate is 50. 3,760 / 6 is close to 3,600/6, so the estimate is 600
A
compatible numbers
13
Q
a 3-dimensional shape with a circular base, a curved surface, and one vertex
A
cone
14
Q
figures that are the same size and same shape
A
congruent
15
Q
a plane formed by 2 perpendicular number lines called axes
A
coordinate plane
16
Q
an ordered pair of numbers used to locate a point on a coordinate plane
A
coordinates
17
Q
a 3-dimensional figure with 6 congruent square faces
A
cube
18
Q
a standard unit for measuring volume
A
cubic unit
19
Q
a customary unit for measuring capacity
A
cup (c)
20
Q
the measurement system used most often in the United States
A
customary system of measurement
21
Q
a 3-dimensional shape with 1 curved surface and 2 circular bases that are parallel and congruent
A
cylinder
22
Q
a collection of facts gathered by observation, questioning, and measuring
A
data
23
Q
a number with a decimal point
A
decimal
24
Q
the dot used to separate the ones place from the tenths place in a decimal number
A
decimal point
25
to get smaller in size or number
decrease
26
a unit of measure for temperature and angles
degree
27
the bottom number in a fraction; the total number of equal parts
denominator
28
a straight line connecting two non-adjoining corners of a polygon
diagonal
29
the answer to a subtraction problem
difference
30
the symbols 0,1,2,3,4,5,6,7,8, and 9 used to write numbers
digits
31
a measure in one direction; the length, width, or height
dimension
32
the number to be divided in a division problem
dividend
33
patterns used to determine whether a number divides evenly into another number without actually doing the division (e.g. A number ending in 5 or 0 is divisible by 5. A number is divisible by 3 if the sum of its digits is divisible by 3.)
divisibility rules
34
the number by which a number is divided
divisor
35
a group or set of 12
dozen
36
the line segment where two faces of a solid figure meet
edge
37
the amount of time that passes from the start of an activity to the end of that activity
elapsed time
38
a point at the end of a line segment or ray
endpoint
39
outcomes having the same chance of happening
equally likely
40
a number sentence that uses the equals sign to show that two amounts are equal
equation
41
2 or more fractions that are equal
equivalent fractions
42
equal in value or amount
equivalent
43
noun- an answer that is close to the exact number (e.g. 42+61 = approximately 100. 100 is the estimate of 42 +61.
verb- to guess about
estimate
44
a way to write number that shows the value of each digit
expanded form
45
a mathematical combination of number, operations, and variables
expression
46
a flat surface of a polyhedron
face
47
a set of related number sentences
fact family
48
a number that is multiplied by another number to find a product
factor
49
a unit of measure for temperature
Fahrenheit
50
a customary unit used to measure length
foot (ft)
51
an equation that states a fact or a rule expressed by symbols
formula
52
a number that names a part of a whole or part of a group
fraction
53
a table listing each value in a dat set followed by the number of times it appears
frequency table
54
an estimation made using the from-end digit of a number
front-end estimation
55
a customary unit used to measure capacity
gallon (gal)
56
a metric unit used to measure mass
gram (g)
57
the symbol used to come are 2 numbers when the larger number is on the left (e.g., 21>13. 21 is greater than 13)
greater than (>)
58
the distance from bottom to top
height
59
a 6-sided polygon
hexagon
60
the direction from left to right, parallel to the horizon
horizontal
61
a unit used to measure time
hour (h)
62
the second number to the right of a decimal point
hundredths
63
the property which states that the sum of any number and zero is that number
identity property of addition
64
the property which states that the product of 1 and any factor is that factor
identity property of multiplication
65
a fraction whose numerator is greater than or equal to its denominator (e.g. 27/3 , 36/2, 57/9)
improper fraction
66
a customary unit used to measure length
inch (in.)
67
to get larger in size or number
increase
68
a mathematical sentence that shows the relationship between qualities that are not equal using <> etc
inequality
69
two lines that cross at exactly one point
intersecting lines
70
operations that undo each other
inverse operations
71
a metric unit used to measure mass
kilogram (kg)
72
a metric unit used to measure length
kilometer
73
an event that has the smallest chance of happening
least likely
74
the symbol used to compare 2 numbers when the smaller number is on the left (e.g. 14<29 14 is less than 29)
less than
75
a straight path that extends infinitely in opposite directions
line
76
a graph in which points are connected by line segments to show changes over time
line graph
77
a line that divides a figure into halves, making a mirror image
line of symmetry
78
a part of a line with two endpoints
line segments
79
a metric unit used to measure capacity
liter (L)
80
the weight of an object, the amount of matter in an object
mass
81
a metric unit used to measure length or distance
meter (m)
82
a measurement system used throughout the world based on multiples of 10
metric system of measurement
83
a customary unit used throughout the world length or distance
mile (mi)
84
a metric unit used to measure capacity
milliliter (mL)
85
a unit used to measure time
minute (min)
86
a metric unit used to measure length
millimeter (mm)
87
a number made of a whole number and a fraction
mixed number
88
an event that has the greatest chance of happening
most likely
89
the product of a given number and any whole number
multiple
90
a two-dimensional model that can be folded to make a solid
net
91
a line on which points correspond to numbers
number line
92
the top number in a fraction, how many equal parts are being considered
numerator
93
an angle greater than 90 degrees and less than 180 degrees
obtuse angle
94
an 8 sided polygon
octagon
95
a figure that does not begin and end at the same point
open figure
96
a pair of numbers used to locate a point on a coordinate plane
ordered pair
97
a number that tells position or order
ordinal number
98
a customary unit used to measure weight or capacity
ounce (oz)
99
a result in probability experiment
outcome
100
two lines that never intersect
parallel lines
101
a quadrilateral with opposite sides that are parallel and congruent
parallelogram
102
a regularly- repeated arrangement of numbers, letters, or shapes, etc.
pattern
103
a 5-sided polygon
pentagon
104
the distance around a closed figure
perimeter
105
lines that intersect at one pony and form right angles
perpendicular lines
106
a graph that uses pictures or symbols to represent collected data
pictograph
107
a customary unit to measure capacity
pint (pt)
108
the value determined by the position of a digit in a number
place value
109
an exact location in space
point
110
a closed figure made of line segments
polygon
111
possible results in a probability experiment
possible outcomes
112
a customary unit used to measure weight
pound (lb)
113
a 3-dimensional shape with two parallel, congruent bases, all other faces are parallelogram
prism
114
a number used to describe the chance that an event will occur
probability
115
the answer to a multiplication problem
product
116
a 3-dimensional shape whose base is a polygon;all other faces are triangles
pyramid
117
a four-sided polygon
quadrilateral
118
a customary unit used to measure capacity
quart (qt)
119
the answer to a division problem
quotient
120
the difference between the highest and lowest values in a set of data
range
121
a part of a line that has one endpoint and extends in the other direction
ray
122
a 3-dimensional figure with 6 rectangular faces
rectangular prism
123
a transformation that produces a mirror image of a figure
reflection
124
to rename a number (e.g. 10 ones = 1 ten, 10 tens = 1 hundred)
regroup
125
a polygon in which all sides are the same length and all angles have the same measure
regular polygon
126
the number left over after dividing into equal groups
remainder
127
a parallelogram whose four sides are congruent and whose opposite angles are congruent
rhombus
128
an angle with a measure of 90 degrees
right angle
129
a transformation of a figure by turning it about a fixed point called the center of rotation or axis
rotation
130
to estimate a number to the nearest ten, hundred, thousand, etc.
round
131
a unti to measure small amounts of time
second (sec)
132
polygons that have the same shape but not necessarily the same size
similar polygons
133
a 3-dimensional shape with all points an equal distance from the center
sphere
134
the product of a number multiplied by itself; a number multiplied by itself; a number that can be represented with a square array
square number
135
the answer to an addition problem
sum
136
a printed mark used to represent an operation or abstract idea (X,, +,-, etc.)
symbol
137
having the same size and shape across a dividing line
symmetry
138
information organized in columns and rows
table
139
a mark used to keep track of data being counted
tally mark
140
the measure of how hot or cold something is
temperature
141
the first number to the right of a decimal point
tenths
142
a solid figure that has length, width, and height
three-dimensional figure
143
a customary unit used to measure weight
ton (T)
144
a change in size, shape, or position of a figure
transformation
145
a transformation that moves a figure by sliding each of the points the same distance in the same direction
translation
146
a quadrilateral with exactly one pair of parallel sides
trapezoid
147
a diagram used to show the total number of possible outcomes in a probability experiment
tree diagram
148
a 3-dimensional shape with two congruent, triangular bases, other faces are parallelograms
triangular prism
149
a plane figure that has length and width
two-dimensional figure
150
fractions tha have different denominators
unlike denominators
151
a letter or symbol used to represent a number
variable
152
a diagram showing relationships between sets
Venn diagram
153
the point where 2 rays meet, where two sides of a polygon meet or where the edges of a polyhedron meet; the top point of a cone or pyramid
vertex/ vertices
154
straight up and down; perpendicular to the horizon
vertical
155
the number of cubic units needed to fill the space occupied by a solid
volume
156
the set of counting numbers and zero
whole numbers
157
the horizontal axis on a coordinate plane
x-axis
158
a customary unit for measuring length or distance
yard
159
the vertical axis on a coordinate plane
y-axis
160
the number which indicates no quantity, size, or magnitude; it is neither negative or positive
zero
