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NWEA Math Vocabulary 211-220
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Gravity
Key Concepts:
Terms in this set (69)
above
in or to a place that is higher
century
a period of 100 years
circle graph
A graph of data where the entire circle represents the whole or 100%
column
a vertical arrangement of objects or numbers in an array or a table. A vertical section of cells in a spreadsheet
combinations
Counting the number of ways something can happen
common multiple
a multiple that is shared by two or more numbers
commutative
the order in which 2 numbers are added does not change the sum, a+b=b+a
compare
note similarities and differences between two or more things
congruent angle
Angles with the same measure
cord or chord
straight line connecting two points on a curve.
date
the particular day, month, or year
decimal
a number written in standard base-ten notation containing a decimal point, such 2.54.
decimal form
a number that uses a decimal point followed by digits showing values less than one
decimal point
The symbol used to separate the whole number part from the fractional part of a number. (separates the ones and tenths place), A dot used to separate dollars from cents or ones from tenths in a number
diameter
the length of a straight line passing through the center of a circle and connecting two points on the circumference
dice
small cubes with 1 to 6 spots on the faces
dilation
To resize something. A similarity transformation in which a figure is enlarged or reduced using a scale factor 0,without altering the center
evaluate
To calculat the value of.
factor tree
A diagram showing the prime factorization of a number. The factors branch out from the previous factors until all of the factors are prime numbers.
fitted line
a line used in a graph with a number of points that don't line up, but go in basically the same direction
formula
a standard procedure for solving mathematical problems. A general rule for finding the value of something.
function
an input-output relationship that has exactly one output for each input.
geometric solid
A three-dimensional geometric figure, such as a prism, pyramid, cylinder, cone ,or sphere.
heads
probability math term
hectometer
a metric unit of length equal to 100 meters
hundred thousands
a place value in the thousands period, the place value of the missing digit _65, 498
increase
the process of becoming larger or longer.
integer
any of the natural numbers (positive or negative) or zero. A number with no fractional part.
Least Common Denominator
The smallest number that can be used for all denominators of 2 or more fractions. Example: the Least Common Denominator of 1/2 and 2/3, is 6 because they can be written as 3/6 and 4/6.
likelihood
the probability of a specified outcome
line of best fit
a line on a graph showing the general direction that a group of points seem to be heading.
line plot
shows data on a number line with X or other marks to show frequency.
lowest terms
a fraction that cannot be renamed in simpler form.
mean
In a data set, the sum of all the data points, divided by the number of data points; average
micrometer
millionth of a meter; instrument for measuring small lengths
mileage table
A table that gives the number of miles between the listed cities.
month
a time unit of 30 days, one of the twelve divisions of the calendar year
odd
a whole number that is not divisible by 2
parallel lines
Lines in a plane that never meet. Two parallel lines are always the same distance apart.
perpendicular lines
two lines that intersect to form right angles
place value
the position of a digit in a number that is used to determine the value of the digit, sduch as ones, tens, hundreds, etc.
plus
another word for add
property
a character or attribute that shmething has. Such as color, height, weight, etc.
protractor
an instrument for drawing/measuring angles
prove
establish the validity of something, as by an example, explanation or experiment
Quintillion
the number that is represented as a one followed by 18 zeros
radius
the length of a line segment between the center and circumference of a circle or sphere
ratio
a pair of numbers that compares different types of units.
reduce
to make smaller
reflection
an image or shape as it would be seen in a mirror
remainder
The amount left over after division
Roman Numeral
How ancient Romans used to write numbers. I = 1, V = 5, X = 10, L = 50,C=100, D=500, and M=1000
simplify
reduce to lowest terms.
south
the cardinal compass point that is at 180 degrees
square centimeter
The area of a square with 1-centimeter sides
square feet
a unit measure for area. A square foot is the area of a square with 1 foot sides.
square mile
a measure of area that is one mile by one mile
straight angle
An angle that measures 180 degrees. a straight angle changes the direction to point the opposit way. It looks like a straight line.
systematic list
When a list is created by following an orderly process (ie. tree diagram)
tails
probability math term
three dimensional
Having the dimensions of height, width, and depth.
transformation
moving a shape so that it is in a different position, but still has the same size, area, angles and line lengths. Turn, flip or slide are the basic moves
translation
moving a shape, without rotating or flipping it. "sliding". The shape looks exactly the same, just in a different place.
triangular prism
a prism whose bases are triangles.
trillion
the number that is represented as a one followed by 12 zeros. means a million millions. 1,000,000 x 1,000,000.
union
a set containing all and only the members of two or more given sets
vertex
A point where two or more straight lines meet.
vertical angle
a pair of opposite congruent angles formed by intersecting lines.
west
the cardinal compass point that is a 270 degrees.
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