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EOG Math Vocab
EOG
50
Mathematics
5th Grade
04/13/2009

Additional Mathematics Flashcards

 


 

Cards

Term

Variable

Definition
letter or symbol standing for a number
Term
Median
Definition
the middle number
Term
Mode
Definition
the number in a set that occurs most often
Term
Range
Definition
the difference in the least and greatest values in a set
Term
Interval
Definition
distance between the numbers on a scale
Term
Line Graph
Definition
used to show how data changes over time
Term
Product
Definition
result of multiplication
Term
Factor
Definition

a number multiplied by another number to find a product

Term
Quotient
Definition

the result of division

Term
Inverse Operations
Definition

operations that undo each other

+/-

x/division

Term
Fact Family
Definition
a set of related equations using the same numbers
Term
Identity Property
Definition
states the product of 1 and any number is that number
Term
Zero Property
Definition
states the product of 0 and any number is 0
Term
Commutative Property
Definition
states you can multiply 2 numbers in any order and get the same product
Term
Order of Operations
Definition

rules for performing more than one operation

Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction

 

Term
Associative Property
Definition
states you can group numbers in different ways and get the same product
Term
Prime Number
Definition

a number that has exactly two factors, 1 & itself

Term
Line
Definition

a straight path of points that continues forever in both directions

Term
Line Segment
Definition

part of a line that has two endpoints

Term
Ray
Definition
part of a line that has one endpoint and continues forever in one direction
Term
Vertex
Definition

the point at which two rays meet to form an angle

Term
Right Angle
Definition
an angle that measures 900
Term
Acute Angle
Definition
an angle that measures less than 900
Term
Obtuse Angle
Definition
an angle that measures greater than 900
Term
Straight Angle
Definition

an angle that measures 1800

Term
Intersecting Lines
Definition
lines that cross each other to form 4 angles
Term
Parallel Lines
Definition
lines that never intersect and are equal distance apart
Term
Perpendicular Lines
Definition

lines that intersect to form 4 right angles

Term
Polygon
Definition

a closed plane figure with straight sides

Term
Quadrilateral
Definition
a polygon with 4 sides
Term
Equilateral Triangle
Definition

a triangle with 3 equal sides 

Term
Trapezoid
Definition
a quadrilateral with 1 pair of parallel sides
Term
Chord
Definition
a line segment that has its endpoints on the circle
Term
Diameter
Definition

a chord passing through the center of the circle

Term
Radius
Definition

line segment with one endpoint at the center of the circle and the other endpoint on the circle

(measures half the diameter) 

Term
Line Symmetry
Definition

if a figure can be folded on a line and form 2 parts that match exactly

Term
Rotational Symmetry
Definition

if a figure can be turned on a central point and still look the same in at least 2 positions

Term
Congruent
Definition

having the same size and shape

Term
Similar
Definition

having the same shape but different size

Term
Translation (Slide)
Definition

a movement of a figure to a new position along a straight line

Term
Reflection (Flip)
Definition
a movement of a figure to a new position by flipping it over a line
Term
Rotation (Turn)
Definition

a movement of a figure to a new position by turning it around a point

Term
Ordered Pair
Definition

a pair of numbers used to locate a point on a coordinate grid

Term
Numerator
Definition

the part of a fraction that tells how many parts of a whole

(top number)

Term
Denominator
Definition

the part of a fraction that tells how many equal parts are in a whole

(bottom number)

Term
Equivalent Fractions
Definition

two or more fractions that name the same amount

Term
Mixed Number
Definition
an amount written as a whole number and a fraction
Term
Decimal
Definition
number with one or more digits to the right of a decimal point
Term
Perimeter
Definition

the distance around a closed figure

*add up all the sides*

(the fence)

Term
Area
Definition

the number of square units needed to cover a surface

*multiply length x width*

(the grass)

 

 

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