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# Unit review

### Review for Let's Be Rational and Decimal Ops

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

mixed number | a whole number and a fraction combined |

improper fraction | a fraction where the numerator is larger than the denominator meaning it is larger than one whole |

decimal | a number that uses a point to show parts of numbers smaller than one whole |

reciprocal | the number that you multiply a fraction by to get a product of one |

dividend | the number being broken into equal parts |

divisor | the number you divide by |

compare | to see if a number is greater, less, or equal to another number |

round | making a number simpler but keeping it close to its original value |

percent | out of 100 |

sales tax | money the government collects when you buy something |

discount | a reduction in price |

ratio | comparison of two values using to or : |

rate | comparison of two values that have different measurement units |

order of operations | the order in which operations need to be solved in an expression |

greatest common factor | the largest number that is a factor of two or more numbers |

least common multiple | the smallest number that is a multiple of two or more numbers |

exponent | a small number placed in the upper right corner that tells you how many times to multiply the base number times itself |

equivalent fractions | fractions with the same value made by scaling up or scaling down |

unit rate | a rate in which one of the numbers being compared is 1 |

rate table | a table in which all of the rates are equivalent |