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# Topic: Arithmetic

###### In the News (Wed 20 Mar 19)

 Arithmetic Software: Homework Help Using detailed statistical analysis, 3 Minute Challenge!™ allows students and educators to quickly identify arithmetic strengths and weaknesses, providing a customized educational experience that leaves no child behind. For a new skill to become automatic or for new knowledge to become long-lasting, sustained practice, beyond the point of mastery, is necessary. Quickly identify arithmetic strengths and weaknesses with detailed time analysis www.bagatrix.com /challenge.htm   (167 words)

 arithmetic - Hutchinson encyclopedia article about arithmetic In China, Egypt, Babylon, and early civilizations generally, arithmetic was used for commercial purposes, records of taxation, and astronomy. During the Dark Ages in Europe, knowledge of arithmetic was preserved in India and later among the Arabs. There have been many inventions and developments to make the manipulation of the arithmetic processes easier, such as the invention of logarithms by Scottish mathematician John Napier in 1614 and of the slide rule in the period 1620–30. encyclopedia.farlex.com /arithmetic   (929 words)

 Modular Arithmetic Vita @ HigherPower.org (Higher Power)   (Site not responding. Last check: ) Modular arithmetic was introduced by Carl Friedrich Gauss in his book Disquisitiones Arithmeticae published in 1801. Modular arithmetic is only interested in the remainder (or residue) after division by some modulus, and results with the same remainder are regarded as equivalent, or congruent. The modulo operation, as implemented in many programming languages and calculators, is an application of modular arithmetic that is often used in this context. higherpower.org /encyclopedia/Modular_arithmetic   (534 words)

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