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# PC_Terms_Chapters01

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

accuracy | the correctness of a number in its representation of a given value |

Arabic numbers | a numbering system that uses numeric symbols to indicate numbers, fractions, and decimals; uses the numerals 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 |

common denominator | a number into which each of the unlike denominators of two or more fractions can be divided evenly |

complex fraction | a fraction in which both the numerator and the denominator are fractions |

decimal | a fraction value in which the denominator is 10 or some power of 10 |

denominator | the number in the bottom part of a fraction |

fraction | a portion of a whole that is represented as a ratio |

improper fraction | a fraction with a value greater than 1 (the value of the numerator is larger than the value of the denominator) |

leading zero | a zero that is placed to the left of the decimal point, in the ones place, in a number that is less than one and is being represented by a decimal value |

lowest known place value | the last digit on the right of a written numeral |

military time | a system of time based on a 24-hour format |

mixed number | a whole number and a fraction |

numerator | the number in the top part of a fraction |

place value | the location of a numeral in a string of numbers that describes the numeral's relationship to the decimal point |

product | the result of multiplying one number by another |

proper fraction | a fraction with a value of less than 1 (the value of the numerator is smaller than the value of the denominator) |

quotient | the result of dividing one number by another |

Roman numerals | a numbering system that uses alphabetic symbols to indicate a quantity; uses the letters I, V, and X to represent 1, 5, and 10, respectively |

scientific notation | a method used to write numbers that have a very large or very small numerical value; uses "x 10" with an exponent |

significant figures | the figures in a numeral that are known values and have not been rounded or estimated in the process of mathematical calculation, plus the digit in the lowest place value, which is approximate |

standard time | a system of time that relates to the natural day and is based on a 12-hour format |

sum | the result of adding two or more numbers together |

trailing zero | a zero that appears at the end of a decimal string and is not needed except when considered significant |

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