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  2. Multiplication table - Wikipedia

    en.wikipedia.org/wiki/Multiplication_table

    Multiplication table from 1 to 10 drawn to scale with the upper-right half labeled with prime factorisations. 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.

  3. Multiplication - Wikipedia

    en.wikipedia.org/wiki/Multiplication

    Area of a cloth 4.5m × 2.5m = 11.25m 2; 4 ⁠ 1 / 2 ⁠ × 2 ⁠ 1 / 2 ⁠ = 11 ⁠ 1 / 4 ⁠ Multiplication (often denoted by the cross symbol × , by the mid-line dot operator ⋅ , by juxtaposition, or, on computers, by an asterisk * ) is one of the four elementary mathematical operations of arithmetic, with the other ones being addition ...

  4. Times table - Wikipedia

    en.wikipedia.org/?title=Times_table&redirect=no

    This page was last edited on 6 June 2004, at 11:02 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply ...

  5. Multiplication algorithm - Wikipedia

    en.wikipedia.org/wiki/Multiplication_algorithm

    A larger table of quarter squares from 1 to 100000 was published by Samuel Laundy in 1856, [9] and a table from 1 to 200000 by Joseph Blater in 1888. [ 10 ] Quarter square multipliers were used in analog computers to form an analog signal that was the product of two analog input signals.

  6. Trachtenberg system - Wikipedia

    en.wikipedia.org/wiki/Trachtenberg_system

    1 General multiplication. ... In this same way the tables for subtracting digits from 10 or 9 are to be memorized. ... SapnaEdu.in at the Wayback Machine (archived 30 ...

  7. Prisoners of Profit - The Huffington Post

    projects.huffingtonpost.com/prisoners-of-profit-2

    Youth Services International confronted a potentially expensive situation. It was early 2004, only three months into the private prison company’s $9.5 million contract to run Thompson Academy, a juvenile prison in Florida, and already the facility had become a scene of documented violence and neglect.