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  2. Multiplication table - Wikipedia

    en.wikipedia.org/wiki/Multiplication_table

    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 ...

  3. List of Schoolhouse Rock! episodes - Wikipedia

    en.wikipedia.org/wiki/List_of_Schoolhouse_Rock...

    1. 1. "Three is a Magic Number". Bob Dorough. Bob Dorough. January 6, 1973. ( 1973-01-06) A magician shows how magic the multiplication of 3 really is, including a family of three and a football team whose uniforms are numbered in threes. "Three Is a Magic Number" was the pilot episode and had originally aired in full as part of Curiosity Shop ...

  4. Multiplication - Wikipedia

    en.wikipedia.org/wiki/Multiplication

    e. Multiplication (often denoted by the cross symbol Ă—, by the mid-line dot operator â‹…, by juxtaposition, or, on computers, by an asterisk *) is one of the four elementary mathematical operations of arithmetic, with the other ones being addition, subtraction, and division. The result of a multiplication operation is called a product .

  5. Casting out nines - Wikipedia

    en.wikipedia.org/wiki/Casting_out_nines

    Let us look at a simple multiplication: 5 Ă— 7 = 35, (3 + 5 = 8). Now consider (7 + 9) Ă— 5 = 16 Ă— 5 = 80, (8 + 0 = 8) or 7 Ă— (9 + 5) = 7 Ă— 14 = 98, (9 + 8 = 17), (1 + 7 = 8). Any non-negative integer can be written as 9Ă—n + a, where 'a' is a single digit from 0 to 8, and 'n' is some non-negative integer. Thus, using the distributive rule ...

  6. Scholastic Corporation - Wikipedia

    en.wikipedia.org/wiki/Scholastic_Corporation

    On October 22, 2020, Scholastic celebrated its 100th anniversary. In 2005, Scholastic developed FASTT Math with Tom Snyder to help students with their proficiency with math skills, specifically being multiplication, division, addition, and subtraction through a series of games and memorization quizzes gauging the student's progress. [10]

  7. Grid method multiplication - Wikipedia

    en.wikipedia.org/wiki/Grid_method_multiplication

    Grid method multiplication. The grid method (also known as the box method) of multiplication is an introductory approach to multi-digit multiplication calculations that involve numbers larger than ten. Because it is often taught in mathematics education at the level of primary school or elementary school, this algorithm is sometimes called the ...

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