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  2. Chisanbop - Wikipedia

    en.wikipedia.org/wiki/Chisanbop

    The Chisanbop system. When a finger is touching the table, it contributes its corresponding number to a total. Chisanbop or chisenbop (from Korean chi (ji) finger + sanpŏp (sanbeop) calculation [1] 지산법/指算法), sometimes called Fingermath, [2] is a finger counting method used to perform basic mathematical operations.

  3. Trachtenberg system - Wikipedia

    en.wikipedia.org/wiki/Trachtenberg_system

    The list below shows a few other methods of calculating, though they may not be entirely mental. Bharati Krishna Tirtha's book "Vedic Mathematics" Mental abacus – As students become used to manipulating the abacus with their fingers, they are typically asked to do calculation by visualizing abacus in their head. Almost all proficient abacus ...

  4. Mental abacus - Wikipedia

    en.wikipedia.org/wiki/Mental_abacus

    The abacus system of mental calculation is a system where users mentally visualize an abacus to carry out arithmetical calculations. [1] No physical abacus is used; only the answers are written down. Calculations can be made at great speed in this way.

  5. History of ancient numeral systems - Wikipedia

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

    [5] [6] While finger-counting is typically not something that preserves archaeologically, some prehistoric hand stencils have been interpreted as finger-counting since of the 32 possible patterns the fingers can produce, only five (the ones typically used in counting from one to five) are found at Cosquer Cave, France.

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    6) Incorporate anal play. "A lot of men, especially those who identify as straight, regularly miss out on a huge source of pleasure: their butts," Vrangalova says.

  7. Teenager may be first human ever to beat Nintendo’s Tetris

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  8. Abacus - Wikipedia

    en.wikipedia.org/wiki/Abacus

    An abacus (pl. abaci or abacuses), also called a counting frame, is a hand-operated calculating tool which was used from ancient times in the ancient Near East, Europe, China, and Russia, until the adoption of the Hindu–Arabic numeral system. [1] An abacus consists of a two-dimensional array of slidable beads (or similar objects). In their ...

  9. Elijah Wood Hints He's Married, Says He Is 'Beyond Grateful ...

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    Elijah Wood may have tied the knot to Mette-Marie Kongsved!. During an episode of the Inside of You with Michael Rosenbaum podcast published on Jan. 6, the Lord of the Rings actor, 43, said he is ...