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  2. Wason selection task - Wikipedia

    en.wikipedia.org/wiki/Wason_selection_task

    The Wason selection task (or four-card problem) is a logic puzzle devised by Peter Cathcart Wason in 1966. [1] [2] [3] It is one of the most famous tasks in the study of deductive reasoning. [4] An example of the puzzle is: You are shown a set of four cards placed on a table, each of which has a number on one side and a color on the other.

  3. List of unsolved problems in mathematics - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Many mathematical problems have been stated but not yet solved. These problems come from many areas of mathematics, such as theoretical physics, computer science, algebra, analysis, combinatorics, algebraic, differential, discrete and Euclidean geometries, graph theory, group theory, model theory, number theory, set theory, Ramsey theory, dynamical systems, and partial differential equations.

  4. 10 Games and Puzzles to Exercise Your Brain - Healthline

    www.healthline.com/health/mental-health/games...

    7. Sudoku. Sudoku is a number puzzle where you have to fill a grid with numbers 1 through 9, with each number appearing only once in a row, column, or box. This classic game makes you think ...

  5. 24 (puzzle) - Wikipedia

    en.wikipedia.org/wiki/24_(puzzle)

    The 24 puzzle is an arithmetical puzzle in which the objective is to find a way to manipulate four integers so that the end result is 24. For example, for the numbers 4, 7, 8, 8, a possible solution is . The problem has been played as a card game in Shanghai since the 1960s, [1] using playing cards. It has been known by other names, including ...

  6. Math Anxiety: How to Spot It and How to Cope - Healthline

    www.healthline.com/health/anxiety/math-anxiety

    According to the American Psychological Association (APA), math anxiety is a type of anxiety that happens in response to math or math-related situations. Math anxiety can cause a wide range of ...

  7. Dyscalculia - Wikipedia

    en.wikipedia.org/wiki/Dyscalculia

    Dyscalculia (/ ˌ d ɪ s k æ l ˈ k juː l i ə /) is a disability resulting in difficulty learning or comprehending arithmetic, such as difficulty in understanding numbers, learning how to manipulate numbers, performing mathematical calculations, and learning facts in mathematics.

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