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# Pre Alg Ch 3

### Classifying Numbers

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

Counting Numbers are sometimes called ____ numbers and are the numbers 1,2,3,4 etc. | NATURAL NUMBERS |

These are POSITIVE numbers we use to count objects. | NATURAL NUMBERS |

ZERO is NOT considered this kind of number. | NATURAL NUMBER |

_____ Numbers include all Natural numbers And ZERO, (0,1,2,3,4,etc) | WHOLE |

T/F All Natural Numbers are Whole Numbers. or (1,2,3,4etc) are both Natural & Whole | TRUE |

T/F All Whole Numbers are Natural Numbers. or (0,1,2,3etc) are both Natural & Whole | FALSE |

Integers are numbers that include all the ____ ____ & their _____. | Whole Numbers (0,1,2,3) & their opposites (-3,-2,-1) |

T/F Fractions & Decimals are Integers. | FALSE/ fractions and decimals are NOT integers. |

T/F All Whole and Natural numbers are Integers. | TRUE/ All whole and Natural Numbers are Integers. |

Are all Integers Whole or Natural Numbers? | No. All Integers are NOT whole or natural. Integers INCLUDE the -(negative whole numbers) |

These type of numbers include all the integers,PLUS all the fractions, PLUS all the terminating & repeating decimals. | RATIONAL NUMBERS |

T/F All natural,whole and integers are rational numbers. | TRUE |

Are all Rational numbers NATURAL, WHOLE OR INTEGERS? | NO. All Rational Numbers are NOT Natural, Whole or Integers. |

The Classification of numbers in order listed from top to bottom are ____, ____, ____, ____ | Natural, Whole, Integers, Rational |

T/F If a number falls into a category it automatically falls into all categories below it. | TRUE: Whatever category a number falls into, it will in turn also be a part of any category below that. |

A number that does NOT fall into any of the 4 categories (Natural, Whole, Integer, Rational) is considered ___________. | Irrational numbers do not fall into any of the categories Natural, Whole, Integer or Rational. |

A _____ number is a number WITH a decimal that neither terminates or repeats. | IRRATIONAL |

The square root of 2 (3.141599265...) is an example of a ____ number. | Irrational because it never repeats nor terminates itself. |

Real numbers are all the _____ & _____ numbers together. | RATIONAL & IRRATIONAL |

Created by:
annabelle1586