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Ch. 4: Number Representation and Calculation
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Terms in this set (20)
Number
An abstract idea that addresses the question "how many?"
Numeral
A symbol or name that stands for a number.
System of Numeration
a writing system for expressing numbers, that is a mathematical notation for representing numbers of a given set, using digits
Hindu- Arabic Numerals
a system of writing numerals that was invented in india and brought to europe by the arabs
Expanded notation
writing a number to show the value of each digit
digits
any of the numerals from 0 to 9 especially when forming part of a number
expanded form
a way to write numbers by showing the value of each digit
positional value
the numerical value that a digit has by virtue of its position in a number
Place value
the numerical value that a digit has by virtue of its position in a number
babylonian numeration system
used only two numerals or symbols
mayan numeration system
vigesimal (base-twenty) numeral system used by the Pre-Columbian Maya civilization. The numerals are made up of three symbols; zero (shell shape) one (a dot) and five (a bar).
Binary
used only the digits 0 and 1
Octal System
Base of 8
sexagesimal system
Base Of 60
hexadecimal
Base of 16
egyptian numeration system
The Egyptians had a bases 10 system of hieroglyphs for numerals. By this we mean that they has separate symbols for one unit, one ten, one hundred, one thousand
Additive system
the number represented is the sum of the values of the numerals
roman numeration system
used ancient rome which employs combinations of letters from the latin alphabet to signify values
traditional chinese numeration system
corresponds to the numbers 0 to 9
ionic greek numeration system
used letters from their alphabet for numerals
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