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  2. Japanese numerals - Wikipedia

    en.wikipedia.org/wiki/Japanese_numerals

    大数の名前について (in Japanese) Ancient Japanese number system Archived 2018-08-29 at the Wayback Machine; English exercises for learning Japanese numerals; Audio to learn the pronunciation for Japanese numbers; Convert kanji numerals to arabic numerals (sci.lang.Japan FAQ page) Convert arabic numerals to kanji numerals (sci.lang ...

  3. History of ancient numeral systems - Wikipedia

    en.wikipedia.org/wiki/History_of_ancient_numeral...

    In the Etruscan system, the symbol 1 was a single vertical mark, the symbol 10 was two perpendicularly crossed tally marks, and the symbol 100 was three crossed tally marks (similar in form to a modern asterisk *); while 5 (an inverted V shape) and 50 (an inverted V split by a single vertical mark) were perhaps derived from the lower halves of ...

  4. List of numeral systems - Wikipedia

    en.wikipedia.org/wiki/List_of_numeral_systems

    Using all numbers and all letters except I and O; the smallest base where ⁠ 1 / 2 ⁠ terminates and all of ⁠ 1 / 2 ⁠ to ⁠ 1 / 18 ⁠ have periods of 4 or shorter. 35 Covers the ten decimal digits and all letters of the English alphabet, apart from not distinguishing 0 from O.

  5. Japanese mathematics - Wikipedia

    en.wikipedia.org/wiki/Japanese_mathematics

    Japanese mathematics (和算, wasan) denotes a distinct kind of mathematics which was developed in Japan during the Edo period (1603–1867). The term wasan , from wa ("Japanese") and san ("calculation"), was coined in the 1870s [ 1 ] and employed to distinguish native Japanese mathematical theory from Western mathematics (洋算 yōsan ).

  6. Finger-counting - Wikipedia

    en.wikipedia.org/wiki/Finger-counting

    A closed palm indicates number 5. By reversing the action, number 6 is indicated by extending the little finger. [8] A return to an open palm signals the number 10. However to indicate numerals to others, the hand is used in the same manner as an English speaker. The index finger becomes number 1; the thumb now represents number 5.

  7. Old Japanese - Wikipedia

    en.wikipedia.org/wiki/Old_Japanese

    u + a → o 1. kazu 'number' + ape 2 'to join' → kazo 1 pe 2 'to count' [59] [62] u + o → o 1. situ 'ancient type of native weaving' + ori 'weaving' → sito 1 ri 'native weaving' [58] [59] Adjacent vowels belonging to different morphemes, or pairs of vowels for which none of the above fusions applied, were reduced by deleting one or other ...

  8. Japanese units of measurement - Wikipedia

    en.wikipedia.org/wiki/Japanese_units_of_measurement

    The Japanese form of the Chinese tael was the ryō (両). [f] It was customarily reckoned as around 4 or 10 momme [15] but, because of its importance as a fundamental unit of the silver and gold bullion used as currency in medieval Japan, it varied over time and location from those notional values. [citation needed]

  9. Tomoe - Wikipedia

    en.wikipedia.org/wiki/Tomoe

    Tomoe (巴, also written 鞆絵), [a] commonly translated as "comma", [2] [3] is a comma-like swirl symbol used in Japanese mon (roughly equivalent to a heraldic badge or charge in European heraldry).