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  2. Counting - Wikipedia

    en.wikipedia.org/wiki/Counting

    Counting is the process of determining the number of elements of a finite set of objects; that is, determining the size of a set. The traditional way of counting consists of continually increasing a (mental or spoken) counter by a unit for every element of the set, in some order, while marking (or displacing) those elements to avoid visiting ...

  3. Finger-counting - Wikipedia

    en.wikipedia.org/wiki/Finger-counting

    Finger-counting, also known as dactylonomy, is the act of counting using one's fingers. There are multiple different systems used across time and between cultures, though many of these have seen a decline in use because of the spread of Arabic numerals . Finger-counting can serve as a form of manual communication, particularly in marketplace ...

  4. Yan tan tethera - Wikipedia

    en.wikipedia.org/wiki/Yan_tan_tethera

    Yan Tan Tethera or yan-tan-tethera is a sheep-counting system traditionally used by shepherds in Northern England and some other parts of Britain. [1] The words are numbers taken from Brythonic Celtic languages such as Cumbric which had died out in most of Northern England by the sixth century, but they were commonly used for sheep counting and ...

  5. Welsh numerals - Wikipedia

    en.wikipedia.org/wiki/Welsh_numerals

    The traditional counting system used in the Welsh language ... (though 18 is more usually "two nines"); numbers from 21 to 39 are "1–19 on ... 20 ugain: dau ddeg ...

  6. Number - Wikipedia

    en.wikipedia.org/wiki/Number

    The most familiar numbers are the natural numbers (sometimes called whole numbers or counting numbers): 1, 2, 3, and so on. Traditionally, the sequence of natural numbers started with 1 (0 was not even considered a number for the Ancient Greeks .)

  7. Unary numeral system - Wikipedia

    en.wikipedia.org/wiki/Unary_numeral_system

    The unary numeral system is the simplest numeral system to represent natural numbers: [1] to represent a number N, a symbol representing 1 is repeated N times. [2]In the unary system, the number 0 (zero) is represented by the empty string, that is, the absence of a symbol.

  8. Devanagari numerals - Wikipedia

    en.wikipedia.org/wiki/Devanagari_numerals

    v. t. e. The Devanagari numeralsare the symbols used to write numbers in the Devanagariscript, predominantly used for northern Indian languages. They are used to write decimalnumbers, instead of the Western Arabic numerals. Table. [edit] Modern.

  9. Tally marks - Wikipedia

    en.wikipedia.org/wiki/Tally_marks

    Tally marks, also called hash marks, are a form of numeral used for counting. They can be thought of as a unary numeral system. They are most useful in counting or tallying ongoing results, such as the score in a game or sport, as no intermediate results need to be erased or discarded. However, because of the length of large numbers, tallies ...

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