A | B |

Open Sentence | Mathematical sentences with one or more variables. It is neither true nor false. |

Solution Set | A set of numbers that make an open sentence true when they replace the variable. |

Replacement Set | A set of numbers from which replacements for a variable may be chosen. |

Element | This is what each object or numbers in a set is called. |

Set | This is a collection of objects or numbers often shown by using braces. |

Equation | A mathematical sentence containing an =. |

Inequality | A mathematical sentence having the symbols < or >. |

Order of Operations | A rule that lets you know which operations to perform first when evaluating an expression or equation. |

Sequence | numbers that form a pattern |

Variables | These are letters that are used to represent numbers. |

Algebraic Expression | This consists of one or more numbers and variables along with one or more arithmetic operations. |

Factors | The quantities that are multiplied together in an expression. |

Product | The result of a multiplication problem. |

Evaluate | Find the value of an expression |

Base | In a power, the number that is multiplied by itself repeatedly |

Exponent | In a power, this indicates the number of times the base is used as a factor. |

Additive Identity Property | 5+0=5 |

Multiplicative Inverse Property | 4 * 1/4 = 1 |

Multiplictive Property of Zero | 12(0) = 0 |

Multiplicative Identity Property | 1 * 23 = 23 |

Reflexive Property of Equality | 3(2) = 3(2) |

Symmetric Property of Equality | If 15 = 13 + 2, then 13 + 2 = 15 |

Transitive Property of Equality | If 14 = 7 * 2 and 7 * 2 = 8 + 3 * 2, the 14 = 8 + 3 * 2 |

Substitution Property of Equality | 22 * 3 - 15 = 66 - 15 |

Distributive Property | a(b + c) = ab + ac |

Term | A number, a variable or the product or quotient of numbers and variables |

Like Terms | Terms that contain the same variables with corresponding variables having the same power |

Simplify an expression | No () and no like terms in the expression |

Coefficient | The numerical factor in a term (for ex. 23 in 23ab) |

Commutative Property of Addition | 2 + 6 = 6 + 2 |

Associative Property of Addition | 2 + (a + d) = (2 + a) + d |

Commutative Property of Mult. | xy = yx |

Associative Property of Mult. | 2(3b) = (2*3)b |