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  2. Positional notation - Wikipedia

    en.wikipedia.org/wiki/Positional_notation

    A digit's value is the digit multiplied by the value of its place. Place values are the number of the base raised to the nth power, where n is the number of other digits between a given digit and the radix point.

  3. Rounding - Wikipedia

    en.wikipedia.org/wiki/Rounding

    In the example from "Double rounding" section, rounding 9.46 to one decimal gives 9.4, which rounding to integer in turn gives 9. With binary arithmetic, this rounding is also called "round to odd" (not to be confused with "round half to odd"). For example, when rounding to 1/4 (0.01 in binary), x = 2.0 ⇒ result is 2 (10.00 in binary)

  4. Quiz bowl - Wikipedia

    en.wikipedia.org/wiki/Quiz_bowl

    Some proponents of reform seek to increase the educational value and fairness of quiz bowl, primarily by using pyramidal questions. [ 53 ] [ 75 ] Many competitions below the college level are criticized for their use of speed-check questions, which encourage participants to rely more on their ability to buzz in quickly than on knowledge of the ...

  5. Mathematics - Wikipedia

    en.wikipedia.org/wiki/Mathematics

    The Babylonians also possessed a place-value system and used a sexagesimal numeral system which is still in use today for measuring angles and time. [76] In the 6th century BC, Greek mathematics began to emerge as a distinct discipline and some Ancient Greeks such as the Pythagoreans appeared to have considered it a subject in its own right. [77]

  6. Mathematical Kangaroo - Wikipedia

    en.wikipedia.org/wiki/Mathematical_Kangaroo

    Participants of Mathematical Kangaroo 1995 to 2020. Mathematical Kangaroo (also known as Kangaroo challenge, or jeu-concours Kangourou in French) is an international mathematics competition in over 77 countries.

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