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  2. Trachtenberg system - Wikipedia

    en.wikipedia.org/wiki/Trachtenberg_system

    The method for general multiplication is a method to achieve multiplications with low space complexity, i.e. as few temporary results as possible to be kept in memory. . This is achieved by noting that the final digit is completely determined by multiplying the last digit of the multiplic

  3. 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 ...

  4. Recall of facts - Wikipedia

    en.wikipedia.org/wiki/Recall_of_facts

    Helping children learn the basic facts is an important goal in the Everyday Mathematics Curriculum. Most children should have developed an automatic recall of the basic addition and subtraction facts by the end of the second grade. They should also know most of their 1, 2, 5, and 10 multiplication facts by this time.

  5. Multiplication algorithm - Wikipedia

    en.wikipedia.org/wiki/Multiplication_algorithm

    It requires memorization of the multiplication table for single digits. This is the usual algorithm for multiplying larger numbers by hand in base 10. A person doing long multiplication on paper will write down all the products and then add them together; an abacus-user will sum the products as soon as each one is computed.

  6. Mental calculation - Wikipedia

    en.wikipedia.org/wiki/Mental_calculation

    For example, given 74088, determine what two-digit number, when multiplied by itself once and then multiplied by the number again, yields 74088. One who knows the method will quickly know the answer is 42, as 42 3 = 74088. Before learning the procedure, it is required that the performer memorize the cubes of the numbers 1-10:

  7. List of mnemonics - Wikipedia

    en.wikipedia.org/wiki/List_of_mnemonics

    To recall the names of the first 20 elements in the periodic table: Harry, ... Multiplication Dear - Division ... To remember the signs of a stroke: FAST.

  8. Mental abacus - Wikipedia

    en.wikipedia.org/wiki/Mental_abacus

    The abacus can be used routinely to perform addition, subtraction, multiplication, and division; it can also be used to extract square and cube [4] roots. See also [ edit ]

  9. Rote learning - Wikipedia

    en.wikipedia.org/wiki/Rote_learning

    Rote learning is widely used in the mastery of foundational knowledge.Examples of school topics where rote learning is frequently used include phonics in reading, the periodic table in chemistry, multiplication tables in mathematics, anatomy in medicine, cases or statutes in law, basic formulae in any science, etc.

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