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# Q3W9 Review

### Review of integers, equations, and inequalities

Term | Definition |
---|---|

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