81 terms

Vocabulary necessary to pass the Oregon 5th Grade Math Benchmark test.
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A polygon with 4 sides.
triangle
A polygon with 3 sides.
acute angle
An angle less than 90 degrees.
angle
Two lines coming out of one point.
diagonal
Having a slanted direction.
difference
The answer to a subtraction problem.
face
The flat surface of an object.
hexagon
A polygon with 6 sides.
obtuse angle
An angle with greater than 90 degrees.
octagon
An 8 sided polygon.
pentagon
A 5 sided polygon.
perpendicular
Intersecting at right angles.
polygon
A closed figure made with three or more line segments.
product
The answer to a multiplication problem.
quotient
The answer to a division problem.
prime number
A positive integer that cannot be divided by another number other than itself and one without a remainder.
ray
A half-line extending from a point.
right angle
An angle that is exactly 90 degrees.
square
A quadrilateral with 4 equal sides and 4 90 degree angles.
sum
vertex
A point that 2 figures intersect at.
whole number
Positive integers and 0
mean
Average
mode
The number(s) in a set that occurs the most.
range
A list of the numbers in the set, usually in number order.
Median
Order the set of numbers from highest to lowest and the number right in the middle is the median.
area
Measurement of a surface in square units.
congruent
Two figures that are the same size and shape.
equation
An array of symbols that are separated into left and right sides and joined by an equal sign.
equilateral triangle
A triangle with 3 equal sides.
isosceles triangle
A triangle with at least 2 equal sides.
scalene triangle
A triangle with 3 unequal sides.
parallel
Lines that do not intersect.
parallelogram
A quadrilateral with opposite parallel lines.
perimeter
The length around the outside boundary.
irregular polygon
A polygon with not all sides the same length.
rhombus
A parallelogram that opposite congruent angles and sides. Ex: a square that appears to lean.
volume
The amount of space a solid body takes up in cubic units . V = L x W x H
trapezoid
A quadrilateral with only two parellel sides.
numerator
The number on the top of a fraction.
denominator
The number Down on the bottom of a fraction that represents the total.
factor
Numbers multiplied together in a math problem.
remainder
What is left over (1) in a division problem. Example: 13 divided by 2 = 6 r1
dividend
A number (54) that is divided by another. Example: 54 divided by 6 = 9
divsor
The number (6) that is divided into another. Example: 54 divided by 6 = 9
symmetry
When a shape can be divided in equal halves that reflect each other. Ex: when you can fold a shape in half and they exactly mirror eachother.
circle
A set of points on a plane that are equal distance from a center point.
circumference
The perimeter of a circle. Circumference = 2 pi(3.14) radius = pi(3.14) x diameter
diameter
The distance from a point on the circle through the center point to the opposite point on the other side.
The distance from a point on the circle to the center point.
cone
a pyramid with a circular cross section.
consecutive numbers
Numbers that come immediately after a given number.
cube
Six square faces that meet at right angles and has eight vertices and 12 edges.
cylinder
A prism (3-D) shape with round edges and 2 flat parellel circular bases. Example: a soup can.
decimal point
The symbol used to separate the whole number part from the fractional part of a number.
equal
Having the same value as another.
greatest common factor (GCF)
The highest valued factor that numbers have in common.
inequality
Not being equal.
least common multiple
The lowest multiple that numbers have in common.
lowest terms
A fraction that has had all of the common factors canceled out.
ordered pair
A pair of elements x and y from a set, written (x,y), where x is the first and y is the second.
estimate
To calculate something approximately.
place value
The value given to a digit by its location in a numeral.
proper fraction
A fraction that the numerator is less than the denominator.
improper fraction
A fraction that the numerator is equal or larger than the denominator.
Roman Numerals
Numeric symbols formed with the Roman letters I, V, X, L, C, D, and M.
rotation
To rotate an object.
symbol
Something that represents something else often defined in a key or legend.
Venn diagram
A diagram using circles of sets, with the position and overlap of the circles indicating the relationships between the sets.
width
The measurement from side to side.
height
The distance from the base of something to the top.
depth
The measure of how deep something is.
translation
Sliding an object in a constant direction. Translation = Slide
degree
Angle measurement
percent
A ratio that compares a number to 100. Ex: 43 out of 100 = 43%
ratio
Comparing two numbers using division. Ex: 43/100
multiple
A product of a whole # and another number. Ex. Count bys: 4, 8, 16
data
Information collected and organized to look at.
regrouping
Borrowing or adding to the next 10 column.
flip
A reflection of what it was.