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Q3W9 Review

Review of integers, equations, and inequalities

absolute value The distance a number is from zero on a number line.
integer The set of numbers containing zero, the natural numbers, and all of the negatives of the natural numbers.
inverse operation The operation that reverses the effect of another operation. Example: add and subtract or multiply and divide.
evaluate To find the value of a numerical or algebraic expression.
explain To make clear by describing it in more detail by providing more facts or ideas.
expression Contains variables, numbers, and operations. It does not contain and equal sign.
equation A mathematical sentence that shows two expressions are equal.
Order of Operations Order of Operations: A rule for evaluating expressions. PEMDAS: Parenthesis, Exponents, Multiply/Divide, Add/Subtract.
Solution A number that makes an equation true when it is substituted for the variable.
Associative Property It does not matter how terms are grouped if they are added or multiplied the solution will be the same. Example: (3 + 4) + 5 = 3 + (4 + 5)
Commutative Property It does not matter how terms are ordered if they are added or multiplied the solution will be the same. Example: 3 + 4 + 5 = 5 + 3 + 4
Distributive Property If a term outside of the parenthesis is multiplied by terms inside parenthesis, the term can be multiplied by each term separately, then combined within the parenthesis. Example: 3( 4 + 5) = (3x4) + (3 x5)
isolate To set apart from others.
Created by: Mrs Ott