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  2. Multiplication table - Wikipedia

    en.wikipedia.org/wiki/Multiplication_table

    In mathematics, a multiplication table (sometimes, less formally, a times table) is a mathematical table used to define a multiplication operation for an algebraic system. The decimal multiplication table was traditionally taught as an essential part of elementary arithmetic around the world, as it lays the foundation for arithmetic operations ...

  3. Zerah Colburn (mental calculator) - Wikipedia

    en.wikipedia.org/wiki/Zerah_Colburn_(mental...

    However, after six weeks of schooling, his father overheard him repeating his multiplication tables. His father was not sure whether or not he learned the tables from his older brothers and sisters, but he decided to test him further on his mathematical abilities and discovered that there was something special about his son when Zerah correctly ...

  4. The History of Mathematical Tables - Wikipedia

    en.wikipedia.org/wiki/The_History_of...

    The History of Mathematical Tables: from Sumer to Spreadsheets is an edited volume in the history of mathematics on mathematical tables.It was edited by Martin Campbell-Kelly, Mary Croarken, Raymond Flood, and Eleanor Robson, developed out of the presentations at a conference on the subject organised in 2001 by the British Society for the History of Mathematics, [1] [2] and published in 2003 ...

  5. Napier's bones - Wikipedia

    en.wikipedia.org/wiki/Napier's_bones

    Napier's bones for 4, 2, and 5 are placed into the board, in sequence. These bones show the larger figure which will be multiplied. The numbers lower in each column, or bone, are the digits found by ordinary multiplication tables for the corresponding integer, positioned above and below a diagonal line.

  6. Promptuary - Wikipedia

    en.wikipedia.org/wiki/Promptuary

    The units digit of this addition, 1, is written down as the next digit of the multiplication result. The tens digit, which is 1, is carried into the next band. The third band from the right has five digits, 2, 4, 3, 1 and 6 plus the carried 1. These are all added to produce 17. The units digit of this, 7, is written as the next digit of the result.

  7. Go and mathematics - Wikipedia

    en.wikipedia.org/wiki/Go_and_mathematics

    The total number of possible games can be estimated from the board size in a number of ways, some more rigorous than others. The simplest, a permutation of the board size, (N) L, fails to include illegal captures and positions. Taking N as the board size (19 × 19 = 361) and L as the longest game, N L forms an upper limit. A more accurate limit ...

  8. Ancient board game — dating back over 3,000 years ... - AOL

    www.aol.com/ancient-board-game-dating-back...

    Ancient board game — dating back over 3,000 years — discovered in Spain. Take a look. Brendan Rascius. March 6, 2024 at 6:28 PM.

  9. New Math - Wikipedia

    en.wikipedia.org/wiki/New_Math

    In the Algebra preface of his book, Precalculus Mathematics in a Nutshell, Professor George F. Simmons wrote that the New Math produced students who had "heard of the commutative law, but did not know the multiplication table". [5] In 1965, physicist Richard Feynman wrote in the essay, New Textbooks for the "New" Mathematics:

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