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  2. 500 (ball game) - Wikipedia

    en.wikipedia.org/wiki/500_(ball_game)

    The game can be played using a frisbee instead of the ball. [5] Mystery Ball (also known as mystery box) is a variation based on the same premise, but along with calling out a number of points, the thrower has the ability to instead call out "mystery ball/mystery box." Once a player has the ball, the thrower says what the mystery ball/mystery ...

  3. On Numbers and Games - Wikipedia

    en.wikipedia.org/wiki/On_Numbers_and_Games

    The game {0|0} is called * (star), and is the first game we find that is not a number. All numbers are positive, negative, or zero, and we say that a game is positive if Left has a winning strategy, negative if Right has a winning strategy, or zero if the second player has a winning strategy. Games that are not numbers have a fourth possibility ...

  4. Negative number - Wikipedia

    en.wikipedia.org/wiki/Negative_number

    The laws of arithmetic for negative numbers ensure that the common-sense idea of an opposite is reflected in arithmetic. For example, − ‍ (−3) = 3 because the opposite of an opposite is the original value. Negative numbers are usually written with a minus sign in front. For example, −3 represents a negative quantity with a magnitude of ...

  5. Investigations in Numbers, Data, and Space - Wikipedia

    en.wikipedia.org/wiki/Investigations_in_Numbers...

    Investigations was developed between 1990 and 1998. It was just one of a number of reform mathematics curricula initially funded by a National Science Foundation grant. The goals of the project raised opposition to the curriculum from critics (both parents and mathematics teachers) who objected to the emphasis on conceptual learning instead of instruction in more recognized specific methods ...

  6. Number Munchers - Wikipedia

    en.wikipedia.org/wiki/Number_Munchers

    Number Munchers is an educational video game and a spin-off of Word Munchers. It was released by MECC for Apple II in 1986, then MS-DOS and Mac in 1990. The concept of the game was designed by R. Philip Bouchard, who also designed The Oregon Trail .

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