Subtraction

  • 13124 Game — This article is about the mathematical game. For the game based on FOX s television series, see 24: The Game. The 24 Game is a mathematical card game in which the object is to find a way to manipulate four integers so that the end result is 24.… …

    Wikipedia

  • 132History of mathematical notation — Mathematical notation comprises the symbols used to write mathematical equations and formulas. It includes Hindu Arabic numerals, letters from the Roman, Greek, Hebrew, and German alphabets, and a host of symbols invented by mathematicians over… …

    Wikipedia