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# Unit 2

### Rational Number Operations Multiplication and Division

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

integer | a set of whole numbers and their opposites |

product | the result when two or more numbers are multiplied |

quotient | the result when one number is divided by another |

inverse operation | operations that undo each other: addition and subtraction or multiplication and division |

commutative property of multiplication | The property states that two or more numbers can be multiplied in any order without changing the product a × b = b × a |

decimal | A number that uses a decimal point followed by digits to the right. |

multiply | To add the same number to itself several times. |

digit | A symbol used to construct a number. |

place value | The position of a digit in a number. |

dividend | The amount to be divided into equal parts or groups. |

divisor | The amount the dividend is divided by. |

power of ten | Ten multiplied by itself a certain number of times. Example: 10^1 |

rational number | A number that can be expressed exactly by a ratio of two integers, and have a specific location on a number line. |

mixed number | A number consisting of a non-zero integer and a fraction. |

improper fraction | A fraction where the numerator is greater than or equal to the denominator. |

simplify | Reducing to lowest terms. |

common factor | The highest number that divides exactly into two or more numbers. |

negative | Having a value less than zero. |

algorithm | A process or a set of rules to be followed in calculations or problem solving. |

reciprocal | Two values that multiply together to get a product of 1. Example: 1/2 and 2/1 |

multiplicative inverse | One of a pair of numbers whos product is one. |

expense | The cost required for something |

income | Money that an individual or business receives in exchange for providing a good or service. |

profit | A financial gain from a transaction. |

Created by:
Mrs Ott