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# 6th: PSSA Vocabulary

### Use the flashcards to review important math vocabulary.

Which property is shown? 3 + (4 + 9) = (3 + 4) + 9 the associative property of addition
The average of a set of data is called the .... mean
Which property is shown? 4(6 + 10) = 4 x 6 + 4 x 10 the distributive property
A polygon having four sides is called a ... quadrilateral
An .... is formed when two mathematical expressions are set equal to each other. Example: x + 8 = 9 equation
A three-sided polygon is called a .... triangle
The answer to a multiplication problem is called.... the product
Which property is shown? 4 x 9 = 9 x 4 the commutative property of multiplication
The point inside a circle that is the same distance from each point on the circle is called the .... center
The line segment that passes through the center of the circle is called the ... diameter
When a fraction's numerator is greater than (or equal to) its denominator, it is called an ... fraction. improper
A six-sided polygon is called a ... hexagon
A triangle with two congruent sides is called an ... triangle. isosceles
A straight path in a plane what goes on forever in each direction is called a ... line
A part of a line that includes two endpoints is called a ... line segment
The number in a set of data that occurs most frequently is called the ... mode
The middle number (when numbers are ordered) in a data set is called the ... median
What is the product of a whole number and another whole number called? Example: 3, 6, 9, 12, 15, etc. multiple
An angle that measures greater than 90 degrees, but less than 180 degrees is called an ... angle. obtuse
What is correct way to perform the order of operations? Parenthesis, Exponents, Multiply/Divide, Add/Subtract
Lines in a plane that never intersect are called ... parallel lines
A five-sided polygon is called a ... pentagon
The distance around a polygon is called ... perimeter
Two lines that intersect to form right angles are called ... perpendicular lines
A closed plane formed by three or more line segments is called a ... polygon
A whole number greater than 1, whose only factors are 1 and itself is called a ... prime number
A whole number greater than 1 that has three or more factors is called a ... composite number
The difference between the greatest and least values in a data set is called the ... range
A line segment with one endpoint at the center of a circle and the other endpoint on the circle itself is called the ... radius
A quadrilateral with four right angles and whose sides are all congruent is called a ... square
An angle that measures exactly 90 degrees is a ... angle. right
A triangle with no congruent sides is a ... tiangle. scalene
An angle whose measure is exactly 180 degrees is called a ... angle. straight
When you find the sum of two numbers, you must ... them. add
Fractions with different denominators are called ... unlike fractions
A letter that takes the place of a number in an expression is called ... variable
The horizontal line on a coordinate plane is called the ... axis. x
The vertical line on a coordinate plane is called the ... axis. y
The answer to a division problem is called the ... quotient
Created by: tsuprick

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