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  2. Tally marks - Wikipedia

    en.wikipedia.org/wiki/Tally_marks

    The first or fifth mark in each group may be written at an angle to the others for easier distinction. In the fourth example, the fifth stroke "closes out" a group of five, forming a "herringbone". In the fifth row the fifth mark crosses diagonally, forming a "five-bar gate". Tally marks are typically clustered in groups of five for legibility.

  3. Counting Rod Numerals - Wikipedia

    en.wikipedia.org/wiki/Counting_Rod_Numerals...

    Tally marks", Recommendations to UTC #146 January 2016 on Script Proposals L2/16-065 Lunde, Ken; Miura, Daisuke (2016-03-14), Proposal to encode two Western-style tally marks

  4. List of numeral systems - Wikipedia

    en.wikipedia.org/wiki/List_of_numeral_systems

    A binary clock might use LEDs to express binary values. In this clock, each column of LEDs shows a binary-coded decimal numeral of the traditional sexagesimal time.. The common names are derived somewhat arbitrarily from a mix of Latin and Greek, in some cases including roots from both languages within a single name. [27]

  5. List of typographical symbols and punctuation marks

    en.wikipedia.org/wiki/List_of_typographical...

    Question mark: Inverted question mark, Interrobang “ ” " " ‘ ’ ' ' Quotation marks: Apostrophe, Ditto, Guillemets, Prime: Inch, Second ® Registered trademark symbol: Trademark symbol ※ Reference mark: Asterisk, Dagger: Footnote ¤ Scarab (non-Unicode name) ('Scarab' is an informal name for the generic currency sign) § Section sign ...

  6. 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 ...

  7. Bingo card - Wikipedia

    en.wikipedia.org/wiki/Bingo_card

    The cards contain three rows and nine columns. Each row contains five numbers and four blank spaces randomly distributed along the row. Numbers are apportioned by column (1–9, 10–19, 20–29, 30–39, 40–49, 50–59, 60–69, 70–79 and 80–90).

  8. Tally stick - Wikipedia

    en.wikipedia.org/wiki/Tally_stick

    The single tally stick was an elongated piece of bone, ivory, wood, or stone which is marked with a system of notches (see: Tally marks). The single tally stick serves predominantly mnemonic purposes. Related to the single tally concept are messenger sticks (used by, e.g., Inuit tribes), the knotted cords, khipus or quipus, as used by the Inca.

  9. Positional notation - Wikipedia

    en.wikipedia.org/wiki/Positional_notation

    Lower row horizontal form. Counting rods and most abacuses have been used to represent numbers in a positional numeral system. With counting rods or abacus to perform arithmetic operations, the writing of the starting, intermediate and final values of a calculation could easily be done with a simple additive system in each position or column ...