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Middle School Math Vocab
Middle School Math Vocab
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Random vocab for middle school math
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1
An angle less than 90 degrees
Complementary
Obtuse
Right
Acute
2
The difference between the smallest and largest of a set of numbers
Mode
Range
Median
Mean
3
The bottom number of a fraction
Denominator
Improper
Whole number
Numerator
4
The sum of the angles in a triangle
180 degrees
360 degrees
90 degrees
270 degrees
5
To find the average of numbers by putting them in order and selecting the value in the middle.
Median
Range
Mode
Mean
6
The answer to a multiplication problem
Difference
Product
Sum
Quotient
7
A letter that represents a number
Percent
Variable
Coefficient
Fraction
8
A number that multiplies a variable (ex: the 4 in 4x
2)
Quotient
Divisor
Coefficient
Variable
9
The distance from a number to zero
Absolute Value
Integer
Equation
Temperature
10
Tenths, Hundredths, Thousandths, Ten thousandths, Hundred thousandths...
Order of operations
Decimal place values
Order of Digits
Whole Number place values
11
The name for (0,0) on a coordinate plane
Face
Origin
Base
Vertex
12
The number of quarts in a gallon
16
2
4
8
13
To change a mixed number to an improper fraction...
Numerator ⋅ Denominator + Whole, Numerator stays the same
Whole ⋅ Numerator + Denominator, Denominator stays the same
Whole ⋅ Denominator + Numerator, Denominator Stays the same
Denominator ⋅ Numerator + Whole, Denominator stays the same
14
The number of degrees in a circle
90
720
360
180
15
Numbers that are being added
Integers
Addends
Quotients
Dividends
16
A corner, or the point where two lines meet
Reciprocal
Vertex
Congruent
Integer
17
Numbers that are divisible by 5...
end in 5
end in 0, 2, 4, 6, or 8
are even
end in 0 or 5
18
They compare amounts, and can be written three ways: with "to", with ":" or as a fraction.
Product
Proportion
Percent
Ratio
19
Operations that undo each other (Addition and subtraction, multiplication and division...)
Inverse operations
Algorithms
Reciprocals
Complementary operations
20
To find the average by selecting the number that is repeated most often
Mode
Mean
Median
Range
21
The answer to a subtraction problem
Sum
Quotient
Product
Difference
22
Side to side
Parallel
Vertical
Perpendicular
Horizontal
23
The space inside a polygon
Area
Volume
Capacity
Perimeter
24
A quadrilateral with four 90 degree angles
Parallelgram
Trapezoid
Rhombus
Rectangle
25
Decreased by, less than, fewer, difference, change
Addition
Subtraction
Division
Multiplication
26
A relationship between two variables; x relating to y
Circle graph
Function
Bar graph
Equation
27
Before multiplying or dividing mixed numbers, rewrite them as ________
Whole numbers
Reciprocals
Improper fractions
Proper fractions
28
The number of inches in a foot
12
10
8
16
29
They are always out of 100
Ratios
Percents
Decimals
Fractions
30
The shortest hand on a clock
Hour Hand
Minute hand
Second hand
Left hand
31
A four sided shape
Triangle
Octagon
Quadrilateral
Pentagon
32
A quadrilateral with all four sides the same length
Rectangle
Trapezoid
Rhombus
Parallelogram
33
Grouping symbols
Numerals
Operations
Parentheses
Quotients
34
The answer to a division problem
Product
Sum
Quotient
Difference
35
Lines that are the same distance apart in all places
Congruent
Perpendicular
Parallel
Right Angle
36
Angles that add up to 180 degrees
Supplementary angles
Tri angles
Inverse angles
Complementary angles
37
The distance across a circle
Diameter
Circumference
Perimeter
Radius
38
The answer to an addition problem
Product
Perimeter
Sum
Difference
39
A fraction that has been "flipped upside down."
Improper fraction
Reciprocal
Proper fraction
Mixed number
40
Angles that add up to 90 degrees
Complementary angles
Supplementary angles
Inverse angles
Acute angles
41
A number that has more than two factors
Equation
Composite
Expression
Prime
42
The inside of a 3D shape
Area
Size
Volume
Perimeter
43
The biggest factor that numbers share
Least Common Multiple
Prime
Greatest common factor
Composite
44
The number that shows how many times to multiply a base number by itself.
Numerator
Quotient
Exponent
Product
45
Rounding numbers before using them
Order of Operations
Dividing
PEMDAS
Estimating
46
6/1 equals...
0.6
0.1
1
6
47
A number used to tell order (1st, 2nd, 3rd...)
Integers
Ordinal Numbers
Natural Numbers
Whole Numbers
48
To divide fractions...
find common denominators
divide straight across
multiply with the reciprocal of the first fraction
Multiply with the reciprocal of the second fraction
49
Polygon
A shape with curved sides
A shape with straight sides
A shape with more than three sides
A four sided shape
50
The number of cups in a pint
2
4
16
8
51
Up and down
Perpendicular
Right angle
Vertical
Horizontal
52
A number written using digits
Word form
Expanded form
Exponential form
Standard form
53
An equation saying that two ratios are equal
Decimal
Ratio
Percent
Proportion
54
Reducing a fraction is also called...
Improper fraction
Proper fraction
Simplifying
Solving
55
The number of pounds in a ton
2,000
10
100
1,000
56
A way of writing very small or very large numbers (ex: 25 ⋅ 10
13
)
Standard Form
Scientific Notation
Exponential Notation
Expanded Form
57
Relationship of a part to a whole
Fraction
Number sentence
Decimal
Ratio
58
A quadrilateral with one set of parallel sides
Rectangle
Trapezoid
Rhombus
Parallelogram
59
Things that have the same size and shape
Similar
Vertical
Parallel
Congruent
60
A number that can be expressed as a fraction, positive or negative
Whole Number
Fractional number
Irrational Number
Rational Number
61
A line that cuts across parallel lines
similar
variable
perpendicular
transversal
62
A number written using its place values as addends
Standard Form
Word Form
Numerical Form
Expanded Form
63
How likely it is for something to happen
Reflection
Geometry
Probability
Translation
64
The distance from the center of a circle to the edge
Diameter
Circumference
Area
Radius
65
Altogether, combined, total
Addition
Multiplicaiton
Division
Subtraction
66
Fractions that have the same value but are written differently.
Improper fractions
Equivalent fractions
Simplified fractions
Proper fractions
67
A rectangle whose sides are all the same length
Square
Rhombus
Quadrilateral
Parallelogram
68
The counting numbers (1, 2, 3, 4...)
Natural Numbers
Real Numbers
Integers
Finite Numbers
69
Making a number simpler by changing it to something that's close but easier to work with
Calculating
Multiplying
Sleeping
Rounding
70
A 90 degree angle
Acute
Right
Similar
Obtuse
71
Any whole number, positive or negative
Coefficient
Fraction
Numeral
Integer
72
The first piece of the order of operations
Addition
Perimeter
Parentheses
Exponents
73
Pi
4.13
3.14
4.31
3.24
74
Three feet equals one...
Inch
Centimeter
Yard
Meter
75
The symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 ONLY
Numbers
Place values
Numerals
Digits
76
The same shape but different sizes
Polygons
Congruent
Similar
Parallel
77
A number that has exactly 2 factors: 1 and itself
Multiple
Factor
Composite
Prime
78
In one year there are _____ days.
235
385
365
335
79
A polygon with two sets of parallel sides
Quadrilateral
Parallelogram
Rhombus
Trapezoid
80
An angle greater than 90 degrees
Right
Obtuse
Similar
Acute
81
The top number in a fraction
Improper fraction
Denominator
Numerator
Whole number
82
A straight line is...
270 degrees
90 degrees
180 degrees
360 degrees
83
Step-by-step procedure for solving a problem
Algorithm
Input-output table
Function
Equation
84
The distance around a circle
Perimeter
Circumference
Diameter
Radius
85
To multiply fractions...
multiply straight across
cross multiply
multiply by the reciprocal
find common denominators
86
of, area, rate, double, triple
Multiplication
Division
Subtraction
Addition
87
Numbers that can be multiplied to make a certain number (ex ~ 8: 1, 2, 4, 8)
Dividends
Factors
Mulitples
Variables
88
Ones, Tens, Hundreds, Thousands, Ten Thousands...
Order of digits
Order of Operations
Decimal Place Values
Whole Number Place Values
89
The sum of the angels in a quadrilateral
360 degrees
180 degrees
90 degrees
270 degrees
90
To find area:
Add all side lengths
Length times width
Multiply all side lengths
Length times width times height
91
A mathematical phrase that can contain numbers, variables and operations.
Coefficient
Variable
Equation
Expression
92
per, each, half, third
Multiplication
Addition
Subtraction
Division
93
Intersecting lines...
cross or touch each other
are supplementary
are the same distance apart in all places
meet at 90 degrees
94
A line with two end points
Ray
Line segment
Perimeter
Line
95
The distance around a shape
Perimeter
Length
Area
Volume
96
The grid where you place ordered pairs (x,y)
Pie Chart
Number line
Coordinate Plane
Bar Graph
97
To find the average by adding numbers together then dividing by how many were added
Mode
Median
Range
Mean
