Flashcards in Math Concepts Deck (61)
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1
all the angles in a triangle add up to
180 degrees
2
all angles of a quadrilateral add up to
360 degrees
3
the formula for perimeter is
length + length + width + width
4
the formula for area is
length times width
5
the formula for volume is
Length times width times height
6
on a place value chart the values increase by a factor of
by tens
7
what is a multiple
it is a answer to a multiplication question
8
Acute angle
a positive angle measuring more than 0 degrees but less that 90 degrees
9
acute triangle
a triangle in which all three angles measure less that 90 degrees
10
angle
the point of intersection of two rays or line segments
11
area
the space within a region measure in square units
12
bar graph
a graph that displays data using bats of equal width on a grid
13
commutative property of addition
the order in which numbers are added does not change the sum of the numbers
14
commutative property of multiplication
the order in which numbers are multiplied does not change the product of the numbers
15
compatible numbers
numbers that are close to the actual numbers but are easier to mentally add, subtract, multiply or divide
16
composite number
a number with a minimum of three factors including 1 and itself
17
congruent
having the same shape and size
18
constant
a term that does not change
19
continuous data
data that can take on any value within a range
20
discrete data
data with a limited number of possible values.
21
what is an example of discrete data
months of the year or days of the week
22
double bar graph
a graph used to make comparisons between two sets of data
23
equilateral triangle
a triangle with three sides of equal length and three angles of equal measure
24
experimental probability
the probability of any event determined by the results of an experiment
25
expression
a mathematical statement that may use numbers, variables, or both numbers and variables.
26
What does an expression not contain?
an equal sign
27
factor
a number that divides evenly into another number
28
factor tree
a method used to diagram the process of prime factorization
29
greatest common factor
the factor with the greatest value common to two or more numbers
30
improper fraction
a fraction whose numerator is greater than the denominator
31
integer
all positive whole numbers, the additive inverses of the whole numbers and zero
32
interior angle
an angle found inside a shape
33
inverse operation
an operation that has the opposite effect of the operation in an equation. Addition and subtraction are the inverse operations of each other. Multiplication and division are the inverse operations of each other
34
isosceles triangle
a triangle that has two sides that are equal and two angles that are equal
35
line graph
a graph where data points are connected with line segments to show change over time
36
lowest common multiple
the multiple with the least value that two numbers
37
mixed number
a number made up of a whole number and a proper fraction
38
multiple
the product of any given whole number
39
obtuse angle
an angle measuring more than 90 degrees but less than 180
40
obtuse triangle
a triangle in which one of the angles measures more than 90 degrees but less than 180 degrees
41
pattern
a list of numbers that follow a certain sequence
42
percentage
a fraction or ratio with a denominator of 100
43
perimeter
the measure of the distance around a closed two dimensional figure
44
polygon
a closed two dimensional shape with three or more straight line segments
45
prime number
a whole number with only 2 factors: itself and 1
46
ratio
a comparison of two or more quantities having similar units
47
reflection
a reflection is a transformation in which a figure is flipped along a line of symmetry to create a congruent image
48
reflecting angle
an angle whose measure is between 180 and 360
49
right angle
an angle measuring 90 degrees
50
right triangle
a triangle that has on right angle of 90 degrees
51
rotation
a transformation in which an image is turned around a fixed point
52
rounding
a process of replacing a number by an approximate value of that number
53
scalene triangle
a triangle with three sides of different lengths and three angles of different measures
54
straight angle
an angle measuring 180 degrees
55
table of values
a chart showing the relationship between x and y values
56
term
the value of a number in a given pattern
57
term number
the position of a term within a given pattern
58
theoretical probability
the change of an outcome happening under ideal circumstances
59
translation
a transformation that moves a point or image from one position to another along a vertical, horizontal or diagonal line
60
variable
a symbol that stands for an unknown number in an equation
61
