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  2. Addition - Wikipedia

    en.wikipedia.org/wiki/Addition

    If a and b have different signs, define a + b to be the difference between |a| and |b|, with the sign of the term whose absolute value is larger. [61] As an example, −6 + 4 = −2; because −6 and 4 have different signs, their absolute values are subtracted, and since the absolute value of the negative term is larger, the answer is negative.

  3. Elementary arithmetic - Wikipedia

    en.wikipedia.org/wiki/Elementary_arithmetic

    The addition of two numbers is expressed with the plus sign (+). [6] It is performed according to these rules: The order in which the addends are added does not affect the sum. This is known as the commutative property of addition. (a + b) and (b + a) produce the same output. [7] [8]

  4. Signed-digit representation - Wikipedia

    en.wikipedia.org/wiki/Signed-digit_representation

    Signed-digit representation can be used to accomplish fast addition of integers because it can eliminate chains of dependent carries. [1] In the binary numeral system, a special case signed-digit representation is the non-adjacent form, which can offer speed benefits with minimal space overhead.

  5. Signed number representations - Wikipedia

    en.wikipedia.org/wiki/Signed_number_representations

    In the sign–magnitude representation, also called sign-and-magnitude or signed magnitude, a signed number is represented by the bit pattern corresponding to the sign of the number for the sign bit (often the most significant bit, set to 0 for a positive number and to 1 for a negative number), and the magnitude of the number (or absolute value ...

  6. Order of operations - Wikipedia

    en.wikipedia.org/wiki/Order_of_operations

    In mathematics and computer programming, the order of operations is a collection of rules that reflect conventions about which operations to perform first in order to evaluate a given mathematical expression. These rules are formalized with a ranking of the operations.

  7. Method of complements - Wikipedia

    en.wikipedia.org/wiki/Method_of_complements

    The method of complements normally assumes that the operands are positive and that y ≤ x, logical constraints given that adding and subtracting arbitrary integers is normally done by comparing signs, adding the two or subtracting the smaller from the larger, and giving the result the correct sign. Let's see what happens if x < y.

  8. How To Write Numbers in Words on a Check - AOL

    www.aol.com/write-numbers-words-check-000044077.html

    By this point, you’ve seen and thought about the many different ways to write numbers in words. Now, it’s time to put it all together. Here are three sample check amounts, with examples of how ...

  9. Mathematical notation - Wikipedia

    en.wikipedia.org/wiki/Mathematical_notation

    However, he used different symbols than those that are now standard. Later, René Descartes (17th century) introduced the modern notation for variables and equations ; in particular, the use of x , y , z {\displaystyle x,y,z} for unknown quantities and a , b , c {\displaystyle a,b,c} for known ones ( constants ).