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# Math Vocabulary

### WES math vocabulary 2018

an angle that is less than 90 degrees acute angle
an angle that is more than 90 degrees and less than 180 degrees obtuse angle
what we measure angles in degrees
a number that has more than two factors composite
a number found by dividing the sum of two or more addends by the number of addends, often referred to as the average mean
the value of a digit three places to the right of the decimal thousandths
a triangle with all sides the same length equilateral triangle
a triangle that has at least 2 congruent sides isosceles triangle
a triangle whose largest angle measures greater than 90 degrees obtuse triangle
a triangle that has one 90 degree angle right triangle
a triangle that has no congruent sides scalene triangle
the number of cubic units it takes to fill a solid volume
a whole number greater than 1 that has exactly 2 factors, 1 and itself. prime number
Number that cannot be divided by 2. Odd Number
Number that is divisable by 2. Even Number
The chance that a particular outcome will occur. Probability
an endless collection of points along a straight path line
part of a line that has two endpoints line segment
part of a line that has one endpoint and extends endlessly in the other direction ray
has four sides and four angles quadrilateral
has five sides and five angles pentagon
has six sides and six angles hexagon
has eight sides and eight angles octagon
value of a digit one place to the right of the decimal tenths
not likely to happen unlikely
To reduce a fraction is to put it in what? Simplest Form
Another word for equal fractions is what? Equivalent Fractions
When adding or subtracting decimals, what do you do with the decimals? Line them up
When multiplying decimals what do you do with the decimals? Count the spaces that are right of the decimal
When dividing decimals what do you do with the decimal? Bring it straight up
When given a set of numbers you find this when you subtract the smallest number from the largest. Range
To find the average is to also find the what? Mean
The number that occurs most often in a set of numbers is the what? Mode
What is the name of a fraction whose numerator is larger than the denominator? Improper Fraction
What is the name of the number above the fraction bar? Numerator
What is the name of the number below the fraction bar? Denominator
What math tool do you use to measure the degrees in an angle? Protractor
This type of graph often shows changes over time Line Graph
On a stem and leaf plot digits in the ones place are known as the what? Leaves
What do you call a rectangle with all sides the same length? Square
What is the name for a quadrilateral with only one pair of parallel lines? Trapezoid
A what moves a figure up, down, or over? ** slide ** Translation
A what produces a mirror image of figure? ** flip ** Reflection
A what rotates a figure around a point? ** turn ** Rotation
What is another term for average or mean? fair share
The MOD Eis the number that occurs __________ ________. most often
How do you find the RANGE? Subtract the smallest number from the biggest one.
What is the clue for MODE? MOOOOOOOST
What is the clue for MEDIAN? The MEDIAN in the road is in the middle.
What is the median in this data set? 8, 15, 21, 25, 33 21
an event with a no chance of occuring has a probability of zero
the result of division quotient
in whole number division, when you have divided as far as you can without using decimals, what has not yet been divided remainder
Created by: MrLittle5

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