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# Math Exam #2

### Math Exam

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

quantity; answers "how many?" | number |

symbol used to represent a number | numeral |

consists of a set of numerals and a rule for combining the numerals to represent numbers | system of numeration |

our present-day numerals | Hindu-Arabic numerals |

number to be represented when multiplying | base |

number above and to the right of the base number to tell you the number of times the base is to be used when multiplying | exponent/power |

requires two things (1) must have a base, (2) must have a set of symbols--a symbol for 0 and one for each counting number less than the base | true positional value system |

early positional system using base 60; it lacked a symbol for 0; it had a thin wedge and a wide wedge to represent numbers | Babylonian system |

our present day decimal system which uses base 10 | Hindu-Arabic system |

0, 1, 2, 3, 4, 5, 6, 7, 8, 9 for the decimal system | digits |

using exponents to write Hindu-Arabic numerals | expanded form |

computers us the base ___ | 2 |

Base 2 | binary system |

Base 8 | octal system |

base 12 | duodecimal system |

base 16 | hexadecimal system |

base 20 | "score" |

base 60 | used in measurement of time and angles (EX. 60 seconds=1 minute; 60 minutes=1 hour; 60 seconds=1 degree |

single numeral such as 0 or 1 | bit |

group of 8 or 16 bits; it may represent a word or symbol | byte |

American Standard Code for Information Interchange; used by most computers | ASCII code |

N={1, 2, 3,...} | natural or counting numbers |

divide another number without leaving a remainder | factors (divisors) |

divisible by only its self and one | prime number |

divisible by a natural number other than itself and one | composite number |

Created by:
dmorri06