click below

click below

Normal Size Small Size show me how

# STAAR Review 1

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

factor | Any number multiplied to form a product. A product can be divided by one factor to find the other factor. |

inverse | Reversed position or direction |

common denominator | A number that is a multiple of all denominators in a problem. |

prime number | A number with only two factors: the number itself and one. |

range | The difference between the least and greatest values in a set of numbers. |

integers | All whole numbers (both positive and negative) and zero. |

mean | The sum of a group of numbers divided by the number of numbers. Also known as the average. |

median | A value found by ordering a group of data from least to greatest and choosing the middle value of the group. |

composite number | A positive whole number with more than two factors. In other words, a number that is not prime. Zero and one are neither composite nor prime. |

percent | The ratio of a number to 100 (per one hundred). The symbol % |

proportion | An equation stating that two ratios are equal |

unit ratio | A ratio that shows the cost per unit of measure |

interquartile range (IQR) | The difference between the upper quartile and the lower quartile |

rational numbers | All whole numbers (both positive and negative), zero, and decimals and fractions |

reciprocal | used to divide two fractions, when you flip the numerator and denominator in order |

exponent | multiply the number by itself |

absolute value | the distance from zero, always positive |

of | word that suggests using multiplication |