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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 |