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# 8th Grade Math

### Real Number Systems and Number Sense

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

Cube Root | One of the three equal factors of a number |

Fraction | A number in the form , where b 0. |

Integers | The set of whole numbers and their opposites |

Irrational Number | A number that cannot be expressed as a ratio of two integers (or as a repeating or terminating decimal) |

Natural Number | A whole, non-negative number |

Perfect Cubes | The cube of a rational number |

Perfect Square | The square of a rational number |

Radical | An expression that uses a root, such as square root, cube root |

Radicand | The number underneath the square root symbol |

Rational Number | Any number that can be expressed as the ratio of two integers, a repeating (with pattern) or terminating decimal |

Real Number | A rational or irrational number |

Repeating Decimal | Decimal in which after a certain point a particular digit or sequence of digits repeats itself indefinitely |

Square Roots | One of the two equal factors of a number |

Terminating Decimal | Decimal which can be expressed in a finite number of figures or for which all figures to the right of some place are zero |

Whole Number | The numbers 0,1,2,3… |

Created by:
tamarablyons