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Unit 3

Vocabulary found in Expressions and Equations

TermDefinition
Algebraic Expression Contains at least one variable and at least one operation.
Evaluate Find the value of, the algebraic expression
Numerical expression a combination of numbers and operations
Order of Operations Tells you which operation to perform first so that everyone finds the same value for an expression
Powers Numbers expressed using exponents. For example 100 is a power of 10 (10 squared or 10 to the 2nd power)
Perfect Squares Numbers that are the squares of whole numbers. For example 25 (5x5) or 100 (10x10)
Base When working with exponents the base is the number used as a factor. For example: 10 to the 2nd power - 10 is the base.
Exponent Tells how many times the base is used as a factor. For example: 10 to the 2nd power - the exponent is 2.
Created by: tstarkey
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