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  2. Subtraction - Wikipedia

    en.wikipedia.org/wiki/Subtraction

    7.2 Subtraction from left to right. ... a specific process is taught to students at the end of the 1st year ... "Subtraction", Encyclopedia of Mathematics, EMS Press, ...

  3. Plus and minus signs - Wikipedia

    en.wikipedia.org/wiki/Plus_and_minus_signs

    The minus sign (−) has three main uses in mathematics: [16] The subtraction operator: a binary operator to indicate the operation of subtraction, as in 5 − 3 = 2. Subtraction is the inverse of addition. [1] The function whose value for any real or complex argument is the additive inverse of that argument.

  4. Elementary mathematics - Wikipedia

    en.wikipedia.org/wiki/Elementary_mathematics

    Elementary mathematics, also known as primary or secondary school mathematics, is the study of mathematics topics that are commonly taught at the primary or secondary school levels around the world. It includes a wide range of mathematical concepts and skills, including number sense , algebra , geometry , measurement , and data analysis .

  5. Elementary arithmetic - Wikipedia

    en.wikipedia.org/wiki/Elementary_arithmetic

    Elementary arithmetic is a branch of mathematics involving addition, subtraction, multiplication, and division. Due to its low level of abstraction, broad range of application, and position as the foundation of all mathematics, elementary arithmetic is generally the first branch of mathematics taught in schools. [1] [2]

  6. Arithmetic - Wikipedia

    en.wikipedia.org/wiki/Arithmetic

    The main arithmetic operations are addition, subtraction, multiplication, and division. Arithmetic is an elementary branch of mathematics that studies numerical operations like addition, subtraction, multiplication, and division. In a wider sense, it also includes exponentiation, extraction of roots, and taking logarithms.

  7. Obelus - Wikipedia

    en.wikipedia.org/wiki/Obelus

    2 In mathematics. 3 See ... form called «Næringsoppgave 1» for the taxation year 2010. ... used as a mathematical symbol for subtraction in ...

  8. Singapore math - Wikipedia

    en.wikipedia.org/wiki/Singapore_math

    Singapore math (or Singapore maths ... [2] [3] The term was coined ... Conversely, a student could use whole-part model to solve a subtraction problem such as 100 ...

  9. New Math - Wikipedia

    en.wikipedia.org/wiki/New_Math

    Musician and university mathematics lecturer Tom Lehrer wrote a satirical song named "New Math" (from his 1965 album That Was the Year That Was), which revolved around the process of subtracting 173 from 342 in decimal and octal.

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