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# PSSA Math

### PSSA vocabulary words that may be seen on the test.

Circumference The distance around a circle.
Composite Number A whole number having more than two factors.
Diameter A line segment that has endpoints on a circle and passes through the center of the circle.
Expanded Notation A way to write numbers that shows the value of each digit. (ex: 4372= 4000 + 300 + 70 + 2)
Greatest Common Factor The largest factor that 2 or more numbers have in common.
Histogram A bar graph in which the labels for the bars are numerical intervals.
Least Common Multiple The smallest number,other than zero, that is a common multiple of two or more numbers.
Line Plot A graph showing the frequency of data on a number line.
Nonagon A polygon with 9 sides.
Plane A flat surface that extends infinitely in all directions.
Prime Number A whole number that has exactly two factors, 1 and itself.
Radius A line segment that has one endpoint on a circle and the other endpoint at the center of the circle.
Range The difference between the greatest and least numbers in a set of data.
Regular Polygon A polygon that has all sides congruen and all angles congruent.
Straight Angle A angle with a measure of 180 degrees.
Transformation The moving of a figure by translation (slide), rotation ( turn), or reflection (flip).
Venn Diagram A diagram that shows relationships among sets of objects.
Whole Number Any of the numbers 0,1,2,3,4,5 (and so on).
X-Axis The horizontal number line on a coordinate plane.
Y-Axis The vertical number line on a coordinate plane.
Operation The four basic operations in math used to solve problems: addition, subtraction, multiplication, and divison.
Sum The total or whole amount. The result of adding.
Product The result when two numbers are multiplied.
Difference The difference between two numbers (subtraction).
Quotient The number resulting from dividing one number by another.
Expression One or a group of mathematical symbols representing a number or quality.
Equation A mathematical statement containing an equals sign to show that two expressions are equal.
Created by: Martinka

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