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# REAL NUMBERS

### Information about the real number sets

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

What are natural numbers? | The counting numbers (1,2,3,4,5 . . . ) |

What are whole numbers? | The set of numbers that contains the natural numbers and 0 (0, 1, 2, 3, 4, 5) |

What are integers? | The set of numbers that contains the whole numbers and their opposites. ( . . .-2, -1, 0, 1, 2, . . .) |

What are rational numbers? | Any number that can be made into a fraction - a/b where a and b are integers, b does not = 0 |

What are irrational numbers? | Numbers that cannot be expressed as fractions, such as pi, or square root of 2 |

Are repeating decimals rational? | Yes, because fractions that repeat such as 1/3, are fractions. |

Are terminating decimals rational? | Yes, because terminating decimals like 0.5 have a fraction equivalent, 1/2 , and fractions are rational. |

What is the square root of 9? | 3 |

What is the square root of 25? | 5 |

What is the square root of 49? | 7 |

What is the square root of 100? | 10 |

What is 4 squared? | 16 |

What is the value of 15 squared? | 225 |

What is the formula for the area of a square? | A = side x side or A = side squared |

Are rational numbers real numbers? | Yes - all irrational and rational numbers are considered real numbers |

Under the Real Number system, what are some classifications for number sets? | Irrational or Rational Natural Whole Integer Rational |

Created by:
jrussellgchs