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# Math Vocabulary

### Review of Math Terms

TermDefinition
Proportion An equation stating that two ratios or rates are equivalent.
Ratio A comparison between two quantities.
Origin The point at which the x-axis and y-axis intersect. The _____ is at the point (0,0).
Simple Interest The amount of money paid or earned for the use of money. The formula for _____ ______ is I=prt.
Sales Tax An additional amount of money charged on items that people buy.
Percent of Change A ratio that compares the amount of change to the original amount. Examples of _____ _____ ____ include markup, discount, percent of increase, and percent of decrease.
Additive Inverse Two integers that are opposites. The sum of an integer and its _________ _________ is zero.
Graph The process of placing a point on a number line or coordinate plane at its proper location.
Zero Pair The result when one positive counter is paired with one negative counter. 8 and -8 is an example of a _____ _____.
Bar Notation In repeating decimals, the line placed over the digits that repeat.
Least Common Denominator The least common multiple of the denominators of two or more fractions.
Like Fractions Fractions that have the same denominator.
Sequence An ordered list of numbers.
Algebraic Expression An expression that contains numbers, variables, and at least one operation.
Constant A term that does not contain a variable.
Two-Step Equations An equation having two different operations.
Equivalent Equations Two or more equations with the same value.
Multiplication Property of Inequality When you multiply each side of an inequality by a negative number, the inequality symbol must be reversed in order for the inequality to remain true.
Acute Angle An angle with a measure greater than 0, but less than 90.
Complementary Angles Two angles are _______ if the sum of their measures is 90.
Right Triangle A triangle having one right angle. (A triangle having one angle that is 90 degrees.)
Circumference The distance around a circle.
Diameter The distance across a circle through its center.
Pi The ratio of the circumference of a circle to its diameter. The estimated value for ____ is 3.14.
Probability The chance that some event will happen. It is the ratio of favorable outcomes to the possible outcomes.
Sample Space The set of all possible outcomes of a probability experiment.
Compound Event An event consisting of two or more simple events.
Vertex The vertex of an angle is the common endpoint of the rays forming the angle.
Factor To write a number as a product of its factors.
Algebra A branch of mathematics that involves expressions with variables.
Created by: jennroth