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