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# Unit 1 Vocabulary

### Value of a Variable lesson a - c

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

Exponent | Indicates the number of times the base is to be used as a factor. |

Evaluate | means to find its value. |

Order of operation | the rule that lets you know which operation to perform first |

Evaluate Algebraic Expressions | replace the variable with their values. Then find the value of the numerical expression using the order of operation. |

algebraic expression | sums and/or products of numbers and variables |

variable | symbols used to represent unknown numbers or values |

term | number, variable, or a product or quotient of numbers and variables |

factor | in multiplication, the quantities being multiplied |

product | the result of multiplying two or more quantities |

Equivalent expressions | expressions that represent the same number. |

Additive Identity | For any number a, the sum and a and 0 is a. |

Multiplicative Identity | For a number a, the product of a and 1 is a. |

Multiplicative Property of Zero | For any number a, the product of a and 0 is 0 |

Multiplicative Inverse (reciprocals | For every number a/b, where a, b ≠ 0, there is exactly one number b/a such that the product of a/b and b/a is 1. |

Commutative Property | The order in which you add or multiply numbers does not change their sum or product. |

Associative Property | The way you group 3 or more number when adding or multiplying does not change their sum or product. |

Distributive Property | When you multiply a number by a group of numbers added together you get the same answer as when you do each multiplication separately |

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

Simplest Form | when an expression contains no like terms and parentheses. |

Coefficient | The numerical factor of a term. |

Created by:
MrsMWilliams