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  2. Mental calculation - Wikipedia

    en.wikipedia.org/wiki/Mental_calculation

    Mental calculation consists of arithmetical calculations using only the human brain, with no help from any supplies (such as pencil and paper) or devices such as a calculator. People may use mental calculation when computing tools are not available, when it is faster than other means of calculation (such as conventional educational institution ...

  3. George Lane (mental calculator) - Wikipedia

    en.wikipedia.org/.../George_Lane_(mental_calculator)

    George Lane (born 1964) is a British mental calculator and author. He is a five-time gold medalist in the Mental Calculations event at the annual Mind Sports Olympiad , [ 1 ] [ 2 ] and is one of only five Grandmasters of Mental Calculation, [ 3 ] as recognised by the Mind Sports Organisation .

  4. Mental abacus - Wikipedia

    en.wikipedia.org/wiki/Mental_abacus

    Mental calculation is said to improve mental capability, increases speed of response, memory power, and concentration power. Many veteran and prolific abacus users in China, Japan, South Korea, and others who use the abacus daily, naturally tend to not use the abacus any more, but perform calculations by visualizing the abacus.

  5. Mental calculator - Wikipedia

    en.wikipedia.org/wiki/Mental_calculator

    A mental calculator or human calculator is a person with a prodigious ability in some area of mental calculation (such as adding, subtracting, multiplying or dividing large numbers). In 2005, a group of researchers led by Michael W. O'Boyle, an American psychologist previously working in Australia and now at Texas Tech University , has used MRI ...

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  7. List of world championships in mind sports - Wikipedia

    en.wikipedia.org/wiki/List_of_world...

    This article gives a list of world championships in mind sports which usually represent the most prestigious competition for a specific board game, card game or mind sport. World championships can only be held for most games or mind sports with the ratification of an official body.

  8. Mind sport - Wikipedia

    en.wikipedia.org/wiki/Mind_sport

    The phrase had been used prior to this event such as backgammon being described as a mind sport by Tony Buzan in 1996; Tony Buzan was also a co-founder of the Mind Sports Olympiad. [2] Bodies such as the World Memory Sports Council [3] use the term retrospectively. It is a term that became fixed from games trying to obtain equal status to sports.

  9. Play Just Words Online for Free - AOL.com

    www.aol.com/games/play/masque-publishing/just-words

    Just Words. If you love Scrabble, you'll love the wonderful word game fun of Just Words. Play Just Words free online! By Masque Publishing