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Space Race
Defend Earth from alien invaders
angle
the space between two lines or planes that intersect

area
the number of square units needed to cover a flat surface

bar graph
a graph that uses horizontal or vertical bars to display data

complementary angles
Two angles whose sum is 90 degrees.

coordinates
Ordered pairs that identify points on a coordinate plane. (x,y)

cross multiplication
When 2 fractions are crossed multiplied.

cross products
the results of cross multiplying

decimal
a number in the decimal system

evaluate
place a value on

fraction
part of a whole

like terms
Expressions that contain the same variables to the same power

line graph
A graph that uses line segments to show changes that occur over time

lowest terms
a fraction that has been reduced completely

mean
average of numbers

median
the middle number

mode
the most frequent value of a random variable

order of operations
the order in which operations in an expression to be evaluated are carried out. 1. parentheses 2. exponets 3. multiplication and divison 4. addition and subtraction

percent
a proportion multiplied by 100

perimeter
The distance around a shape

place value
The value of a digit based on its position within a number

probability
a measure of how likely it is that some event will occur

proper factor
all factors of a number, except for the number itself

proportion
is/of = part/whole

range
the number with the greater value minus the smaller value number

ratio
The relative magnitudes of two quantities (usually expressed as a quotient) or 5;3 or 5 to 3

rectangular coordinate grid
A device for locating points in a plane using ordered pairs or coordinates

scientific notation
A method of writing or displaying numbers in terms of a decimal number between 1 and 10 multiplied by a power of 10.

simplify
Make simpler or easier or reduce in complxity or extent

standard notation
A number written without exponents: an integer or a decimal fraction.

supplementary angles
Two angles whose sum is 180 degrees

venn diagram
A diagram that uses circles to display elements of different sets. Overlapping circles show common elements.

verticle angles
Opposite angles of two intersecting lines

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