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# LISD 7th Prereq

### Prerequisite and Support Words

Question | Answer |
---|---|

area | the number of square units covering a surface of a figure |

circumference | the distance around a circle or its perimeter |

diameter | the distance across a circle through its center |

difference | the solution to a subtraction problem |

dimensions | "the measurements of a figure’s edges (length, width, height)" |

equation | a mathematical sentence using numbers and/or variable(s) where both sides are equal |

evaluate | to calculate the answer to an expression or equation |

expression | "a combination of numbers, operations and/or variables with no equal sign" |

justify | using numbers AND words to support your answer. |

mean | the mathematical average of the data; found by finding the sum of all the data and dividing by the number of data pieces |

median | the middle number when data is arranged in numerical order |

mode | the number most repeated in a set of data |

perimeter | the distance around a geometric figure or the sum of all its sides |

product | the solution to a multiplication problem |

quotient | the solution to a division problem |

radius | the distance from the center of the circle to the edge |

range | difference between the greatest and least pieces of data |

ratio | the comparison of two numbers that can be written in various ways |

reasonableness | "showing reason or sound judgment; ""a sensible choice""" |

sum | the solution to an addition problem |

Venn diagram | overlapping circles used to organize data into categories where some information may overlap |

volume | "the amount of space that a three-dimensional object contains, measured in cubic units" |