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Math PSSA words
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Gravity
Terms in this set (77)
acute triangle
a triangle in which all interior angles are acute angles
acute angle
an angle with a measure greater than 0 and less than 90 degrees
addend
a number that is added to another number
adjacent angle
two angles with a common side and a common vertex
angle
two rays that have a common endpoint
area
the measure, in square units, of the interior of a plane figure
array
a rectangular arrangement of objects, symbols, or numbers
associative property
(a + b) + c= a + (b + c)
average
a number found by dividing the sum of a set of numbers by the number of addends
bar graph
displaying data using bars
combinative property
a + b = b + c and a x b = b x a
composite numbers
a whole number grater than 1 that is not a prime number
decagon
a polygon wit exactly 10 sides
decimal notation
a number written with base 10 place values that are smaller than one. ( .25)
degree
inclination of an angle. (30 degrees)
denominator
the bottom number in a fraction
5/6
6 is the denominator
dividend
the number that is being divided
28 divided by 7 =4.
28 is the dividend.
divisor
the number by which another number is divided.
28 divided by 7 =4.
7 is the divisor.
equation
a mathematical sentence or statement relating two equal expressions
equilateral triangle
a triangle where all sides are the same length
equivalent
two or more expressions or other representations that have the same value
Expanded Form
A whole or decimal number written as the sum of single-digit multiples of powers of 10. (7,840= 7,000+800+40)
Face
A 2-D plane figure that is one side of a 3-D solid figure.
fact family
9+6=15 , 6+9=15 , 15-6=9 , 15-9=6
factor
a whole number that can divide another whole number with no remainder.. 1, 3, 5, 15 =15
factor pair
a pair of whole numbers that equal a product
7x4=28
fraction
a ration of two values, part of a whole
4/6
function
input creates an output
heptagon
a polygon with 7 sides
hexagon
a polygon with 6 sides
integer
a counting number including negative numbers
-2, -1, 0, 1, 2
isosceles triangle
a triangle with 2 congruent sides
least common denominator (lcd)
the least common multiple of the denominator of two or more fractions
leg
sides of a triangle that are congruent
line
straight set of points with not endpoint
line of symmetry
a line that divides a figure into two parts that are congruent
line plot
data represented by an x on a number line
nonagon
a polygon with 9 sides
number line
a graph that represents numbers as points on a line
number sentence
an expression, mathematical statement, or equation
numerator
the top number in a fraction
5/6
5 is the numberator
obtuse angle
an angle greater than 90 degrees and less than 180 degrees
octagon
a polygon with 8 sides
order of operations
the rules that specify the order in which operations are performed
parallel lines
two or more lines that lie in the same plane and do not intersect
pentagon
a polygon with 5 sides
perimeter
the distance around the outside of a closed plane figure
perpendicular
two lines, rays, or segments that intersect to form a least one right angle
pictograph
a chart that uses pictures to represent data
place value
the value of the place a digit occupies in a number
plane
a set of points that forms a flat surface that extends infinitely in all directions
point
a figure with no dimensions, an exact location, or single dot
polygon
2-D closed shape
prime number
a whole number greater than 1 with exactly two factors 1 and the number itself
product
an answer of a multiplication problem
4 x 9 = ?
quadrilateral
a polygon with 4 sides
quotient
the answer to a division question
ray
a part of a line that has one endpoint and continues infinitely in one direction
rectangle
a parallelogram with all angles congruent and each angle is 90 degrees. 2 sides are congruent
regular polygon
a polygon with all congruent sides and all angles are congruent
rhombus
a parallelogram with all sides congruent
right angle
an angle that measures exactly 90 degrees and may be marked with a small square in the interior of the angle
right triangle
a triangle in which an interior angle is a right angle / 90 degrees
scalene triangle
a triangle in which all sides are different lengths
square
a parallelogram with all sides congruent and all angles are congruent. It is also a rectangle and a rhombus.
subtrahend
an expression that is subtracted from another expression
sum
the result when adding two or more numbers together
tally chart
a chart or table in which tally marks are used to record data
time (analog)
time displayed by using 2 or 3 hands
time (digital)
time displayed by using digits
triangles
a polygon with 3 sides
unit price
the price per single item
unit square
a square with each side 1 unit in length
Venn Diagram
a diagram that represents the relationship between data by comparing and contrasting data
vertex
a point where lines, rays, or line segments meet and form a point
volume
the amount of space that a 3-D figure occupies or contains
whole number
a counting number and a non-negative number
0, 1, 2, 3, 4, 5...
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