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  2. Puzzle - Wikipedia

    en.wikipedia.org/wiki/Puzzle

    A puzzle is a game, problem, or toy that tests a person's ingenuity or knowledge.In a puzzle, the solver is expected to put pieces together (or take them apart) in a logical way, in order to find the solution of the puzzle.

  3. Four fours - Wikipedia

    en.wikipedia.org/wiki/Four_fours

    Four fours is a mathematical puzzle, the goal of which is to find the simplest mathematical expression for every whole number from 0 to some maximum, using only common mathematical symbols and the digit four.

  4. Skill testing question - Wikipedia

    en.wikipedia.org/wiki/Skill_testing_question

    For example, a sample question is "(16 × 5) - (12 ÷ 4)" (Answer: 77). The winner should not receive any assistance (e.g. using a calculator, asking another individual to calculate the answer for the winner) in answering the STQ. Enforcement of these rules is not very stringent, especially for small prizes.

  5. Order of operations - Wikipedia

    en.wikipedia.org/wiki/Order_of_operations

    The order of operations, that is, the order in which the operations in an expression are usually performed, results from a convention adopted throughout mathematics, science, technology and many computer programming languages.

  6. Cowbellpedia - Wikipedia

    en.wikipedia.org/wiki/Cowbellpedia

    Thousands of questions generated by NECO are loaded into the software per season and spread across different categories and syllabus. The Cowbellpedia series is packaged as 55 Mins to 1hr X 16 episodes, transmitted across Africa on Africa Magic on DSTV , AIT Network and six major stations across key cities, and available globally on YouTube and ...

  7. Eddie Woo - Wikipedia

    en.wikipedia.org/wiki/Eddie_Woo

    It addresses questions like "Why are rainbows curved?" and "Why aren't left-handers extinct?", with the answer being: maths, and that maths is all about patterns with the universe is extraordinarily patterned. [11] The second, Eddie Woo's Magical Maths, is a children's activity book.

  8. Universal algebra - Wikipedia

    en.wikipedia.org/wiki/Universal_algebra

    The universal algebra point of view is well adapted to category theory. For example, when defining a group object in category theory, where the object in question may not be a set, one must use equational laws (which make sense in general categories), rather than quantified laws (which refer to individual elements). Further, the inverse and ...

  9. History of mathematical notation - Wikipedia

    en.wikipedia.org/wiki/History_of_mathematical...

    Many areas of mathematics began with the study of real world problems, before the underlying rules and concepts were identified and defined as abstract structures.For example, geometry has its origins in the calculation of distances and areas in the real world; algebra started with methods of solving problems in arithmetic.