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Math Vocabulary

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# Math Vocabulary

### Numbers

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

Counting Numbers | The set of counting numbers, or natural numbers, begins with the numer 1 and continues into infinity. Ex. {1,2,3,4,5,6,7,8,9,10...} |

Whole Numbers | The set of whole numbers is the same as the set of counting numbers, EXCEPT that it begins with 0. Ex. {0,1,2,3,4,5,6,7,,8,9,10...} |

Rational Numbers | The set of rational numbers includes any number that can be written in the form of a fraction, as long as the denominator is not equal to 0. All counting numbers and whole numbers are also rational numbers. |

Prime Numbers | Counting numbers that can be divided by only two numbers - 1 and themselves. Prime numbers can also be described as a couting number with only two factors, 1 and itself. The number 1 is not a prime number. Examples: 2,3,5,7,11,13,17,19,23,29,31,37... |

Composite Numbers | Numbers that have more than two factors. The number 1 is not composite. Examples: 4,6,8,9,10,12,14,15,16,18,20,21,22,24,25,26,27,28,30,32... |

Even Numbers | Include the numbers 0 and 2 and all numbers that can be divided evenly by 2. |

Odd Numbers | All numbers that cannot be divided evenly by 2. |

Integers | any number from the set {…-4,-3,-2,-1,0,1,2,3,4…} |

Negative Numbers | Numbers that are less than 0. Ex. -4,-3,-2,-1 |

Positive Numbers | Numbers greater than 0. Ex. 1,2,3,4,5... |

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missrusinek