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127 Cards in this Set

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absolute value
the distance between a number and zero on the number line
addend
one of the numbers being added in an addition problem
adjacent angles
two angles that share a common side
algebraic expression
an expression that contains one or more variables
alternate interior angles
angles between parallel lines that are on opposite sides of the transversal
angle
formed when two lines intersect
angle measure
the number of degrees in an angle
area
the number of square units covered by a geometric figure
arithmetic mean
the average; the sum of a set of numbers divided by the number of numbers in the set
average
the mean; the sum of a set of numbers divided by the number of numbers in the set
bar graph
a graph that uses bars of different lengths to compare data
circle graph
a pie chart; a graph shapd like a circle that shows fractions, percents, or decimals as parts of the whole
cone
a three-dimensional object with a cricular base and a pointed top
congruent
having the same size and shape
congruent angles
two angles that have equal degree measure
consecutive numbers
integers or a subset of integers that are next to each other.
consecutive integers
integers that increase or decrease incrementally by 1
coordinates
the x and y values of a point in the coordinate plane, written (x,y)
counting
figuring the number of ways you can select members of a group
counting principle
fundamental principle of counting; if one event can happen in n ways, and for each of these, a second event can happen in m ways, the total ways in which the two events can happen is n times m
counting number
natural number; any positive integer
cube
a six-sided square prism. all sides are congruent
cylinder
a three-dimensional object with a circular top and an identical base
decimal
a rational number equivalent to a fraction whose denominator is a power of 10
decimal places
places to the right of the decimal
degree
1/360th of a circle; used to measure angles
degree measure
the size of an angle in degrees
denominator
the bottom number in a fraction
diameter
a line that divides a circle in half. it passes directly through the center of the circle and tht starts and ends on the edges of a circle
difference
the result of a subtraction problem
digit
a member of the set of all consecutive integers from 0 to 9
dividend
the number being divided in a division problem
divisibility
division with no remainder
divisor
the second number in a division problem
equation
a mathematical statement that uses an equal sign to show that two mathematical expressions are equal
equilateral triangle
a triangle with three equal sides and three equal angles that all measure 60 degrees
even number
a whole number that is divisible by 2
exponent
a number written to the upper right of a number that tels how many times to multiply tht number by itself
factor
a number that divides evenly into another number
fraction
a number written as a part over a whole; a numerator over a denominator
fundamental principle of counting
if one event can happen in n ways, and for each of these, a second event can happen in m ways, the total ways in which the two events can happen is n times m
graph
a visual representation
heptagon
a seven-sided polygon
hexagon
a six-sided polygon
hundreds place
the position of the third digit to the left of the decimal point
hundredths place
the position of the second digit to the right of the decimal point
hypotenuse
the side of a right triangle that is opposite the right angle; the longest side in a right triangle
improper fraction
a fraction with a numerator that is larger that the denominator
inequality
a mathematical sentence that shows the relationship between expressions that are not equal, using <,>,<=,>=
integer
any positive or negative whole number or 0
irrational number
any number that is not a rational number. a number is this if it can be written as a decimal that does not repeat and does not end
isosceles triangle
a triangle that has two equal sides and two equal angles
line
a straight line that goes on forever in both directions
mean
the average; the sum of a set of numbers divided by the number of numbers in the set
median
the middle value of a set of numbers when they are arranged from lowest to highest. if the set contains an even number of numbers, it is the average of the two numbers closest to the middle
mixed number
a number that is made up of a whole number and a fraction
mode
the value or values that appear most frequently in a list of numbers
multiple of a number
the product of that number and another number
natural number
any positive integer; a counting number
negative number
any number that is less than zero
number line
a line labeled with positive and negative numbers in increasing order from left to right that extends infinitely in both directions
numerator
the top number in a fraction
octagon
an eight-sided polygon
odd number
a whole number that is not divisible by 2
ones places
the position of the first digit to the left of the decimal point; units place
order of operations
the order in which to simplify a problem with multiple operations; PEMDAS
ordered pair
coordinates
origin
the point (0,0) on the coordinate plane where the x-axis and the y-axis meet
parallel lines
lines that are always the same distance apart
parallelogram
a four-sided polygon with two sets of parallel lines
PEMDAS
Please Excuse My Dear Aunt Saly; a way to remember the order of operations in problems: Parentheses, Exponents, Multiplication and Division, Addition and Subtraction
pentagon
a five-sided polygon
percent
the ratio of a number to 100
perimeter
the distance around a geometric figure; the sum of lengths of the sides
perpendicular lines
lines that intersect to form four right angles
pie chart
a graph shaped like a circle that shows fractions, percents, or decimals as parts of the whole; a circle graph
point
a dot that represents an exact location
polygon
a closed geometric figure with three or more sides
positive number
any number greater than zero
prime number
an integer greater than 1 that is divisible only by 1 and itself
prism
a three-dimension object with congruent, parallel ends and rectangular sides
probability
the number of ways the event can happen divided by the total number of possible outcomes
product
the result of a multiplication problem
proportion
a statement that says two ratios are equal
pythagorean theorem
the sum of the squares of the lengths of the two legs of a right triangle is equal to the length of the hypotenuse squared; a^2+b^2=c^2
quadrilateral
a four-sided polygon
quotient
the integer result of a long division
radius
a line that starts at the center of a circle and ends on the edge of the circle; half of the diameter
range
the difference between the highest and lowest values in a group of numbers
ratio
a comparison of two numbers or quantities
rational number
a number that can be written in the form of a fraction whose numerator and denominator are both integers
real number
any rational or irrational number
reciprocal
a fraction flipped upside down
rectangle
a four-sided polygon with four right angles
rectangular box
a three-dimensional rectangle
reduced fraction
a fraction in which the numerator and the denominator have no common factors
reflection
the process of moving a point or figure by reflection it over an axis, as if the axis were a mirror
regular polygon
a polygon in which all sides are equal and all angles are equal
repeating decimal
a decimal number that ends in an infinitely repeating series of digits.
rhombus
a four-sided polygon with four equal sides
right angle
an angle that has a measure of 90 degrees
right triangle
a triangle that has a 90 degree angle as one of its angles
sample space
the set of all possible outcomes in a probability problem
scatter plot
a graph made by plotting data points
sphere
a three-dimensional object in which all surface points are the same distance from the center
square
a four-sided polygon with four equal sides and four right angles
square root
the nonnegative number which, when multiplied by itself, gives you the original number
tangent
touching
tens place
the position of the second digit to the left of the decimal point
tenths place
the position of the first digit to the right of the decimal point
thousands place
the position of the fourth digit to the left of the decimal point
thousandths place
the position of the third digit to the right of the decimal point
transformation
any combination of translations and reflections
translation
a process of moving a point or figure a specified distance in a certain direction
transversal
a line that cuts across parallel lines
trapezoid
a four-sided polygon with exactly one pair of parallel sides
triangle inequality rule
the sum of the length of any two sides of a triange is always greater than the third side
units place
the position of the first digit to the left of the decimal point
variable
a letter than represents a number
vertex
the point at which lines intersect
vertical angles
the angles opposite each other that are formed when two lines intersect
volume
the amount of space that a three-dimensional figure occupies
whole number
a natural (or counting) number or 0
x-axis
the horizontal axis on the coordinate plane
x-coordinate
the first number in an ordered pair
y-axis
the vertical axis on the coordinate plane
y-coordinate
the second number in an ordered pair