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math flash cards
63
Mathematics
8th Grade
11/24/2009

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Cards

Term
what do we call numbers grouped with the operation to be used?
Definition
an expression
Term
what is the name for numbers multiplied together to find a product?
Definition
factors
Term
what do we call numbers added or subtracted to find a sum or a difference
Definition
terms
Term
what is a letter that represents an unknown value called
Definition
variable
Term
what do we call the number directly in front of the variable
Definition
coefficient
Term
if a word problem says to evalulate what does this mean
Definition
solve it
Term
if a word problem asks how much much for each, what operation do you use?
Definition
division
Term
if a word problem asks for the product, what operation do you use
Definition
mutiplication
Term
if a word problem asks for the difference, what operation do you use
Definition
subtraction
Term
if a word problem asks for the sum, what operation is used
Definition
addition
Term
what is the order of operations
Definition
P.E.M.D.A.S.
Term
what does P.E.M.D.A.S. stand for
Definition
parentheses, exponents, multiplication, division, addition, subtraction
Term
what is the number or expression that is used as a factor in repeated multiplication called
Definition
base
Term
what is a number or variable that represents the number of times a base is used in repeated multiplication
Definition
exponent
Term
what is an expression such as five thirds that has a base of five and an exponent of three called
Definition
power
Term
how many hours in a day
Definition
24 hours
Term
how many days in a week
Definition
7 days
Term
how many weeks in a year
Definition
52 weeks
Term
how many months in a year
Definition
12 months
Term
how many days in a year
Definition
365 days
Term
how many inches in a foot
Definition
12 inches
Term
how many feet in a yard
Definition
3 feet
Term
how many feet in a mile
Definition
5,280 feet
Term
how many miles around the earth at the equator
Definition
25,000 miles
Term
[image]what shape is this
Definition
[image]octogon
Term
[image]what shape is this
Definition
[image]hexagon
Term
what shape is this [image]
Definition
trapezoid[image]
Term
what shape is this[image]
Definition
parallelogram[image]
Term
what shape is this[image]
Definition
pentagon[image]
Term
on a coordinate plane, is the x-axis vertical or horizontal
Definition
horizontal
Term
on a coordinate plane , is the y-axis vertical or horizontal
Definition
vertical
Term
which coordinate is listed first in an ordered pair, x or y
Definition
x
Term
what is the point where the x-axis and y-axis intersect called
Definition
point of origin
Term
how are the quadrants of a coordinate plane numbered
Definition
2, 1, 3, 4
Term
what property is illustrated by this equation: a+b=b+a
Definition
commutative property
Term
what property is illustrated by this equation: 2(3 times 4)=(2 times 3)4
Definition
associative property
Term
what property is illustrated by this equation: 6(7+4)=(6 times 7)+(6 times 4)
Definition
distributive property
Term
how many units are in a gross
Definition
144 units
Term
how many units are in a score
Definition
20 units
Term
what is the symbol for greater than?
Definition
[image]
Term
what is the symbol for less than?
Definition
[image]
Term
what is the symbol for less than or equal to
Definition
[image]
Term
what is the symbol for greater than or equal to
Definition
[image]
Term
what is the symbol for infinity
Definition
[image]
Term
what is another name for 0 degress latitude
Definition
equator
Term
what is another name for 0 degrees longitude
Definition
prime meridian
Term
what are the horizontal lines on a map or globe called
Definition
latitude
Term
what are the vertical lines on a map or globe called
Definition
longitude
Term
what is the formula to find the area of a triangle
Definition
base times height divided by two
Term
what is thesum of the angles in a triangle
Definition
180 degrees
Term
how many degrees does a right angle have
Definition
90 degrees
Term
what is an acute angle
Definition
an angle less than 90 degrees
Term
what is an obtuse
Definition
an angle more than 90 degrees
Term
in a set of numbers, the difference between the greatest number and the least number number called
Definition
range
Term
what is another name for the average of a set of numbers
Definition
mean
Term
what is the middle number of a set of numbers called
Definition
median
Term
in a set of numbers, what is the number that occurs most often called
Definition
mode
Term
what is the formula for the area of a circle
Definition
[image]
Term
what is the value of pie 
Definition
3.14
Term
what is the line that starts at the center of a circle and ends at the end of the circle
Definition
radius[image]
Term
what is the line that cuts a circle in half called
Definition
diameter[image]
Term
a number which has exactly 2 factors itself and 1 is called
Definition
a prime number ex.2, 3, 13, 29
Term
a whole number greater than 1 that has factors other than or itself is called
Definition
a composite number  ex. 4, 8, 26, 50
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