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