subtraction by addition

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• Addition — is the mathematical process of putting things together. The plus sign + means that two numbers are added together. For example, in the picture on the right, there are 3 + 2 apples meaning three apples and two other apples which is the same as… …   Wikipedia

• addition — [n1] process of conjoining, adding accession, adding, adjoining, affixing, annexation, attachment, augmentation, enlargement, extension, inclusion, increasing; concepts 236,245 Ant. decrease, deduction, lessening, loss, reduction, shrinkage,… …   New thesaurus

• Subtraction — 5 − 2 = 3 (verbally, five minus two equals three ) …   Wikipedia

• Addition — Ad*di tion, n. [F. addition, L. additio, fr. addere to add.] 1. The act of adding two or more things together; opposed to {subtraction} or {diminution}. This endless addition or addibility of numbers. Locke. [1913 Webster] 2. Anything added;… …   The Collaborative International Dictionary of English

• Addition-subtraction chain — An addition subtraction chain, a generalization of addition chains to include subtraction, is a sequence a 0, a 1, a 2, a 3, ... that satisfies:a 0 = 1, ,: ext{for }k > 0, a k = a i pm a j ext{ for some }0 leq i,j < k.An addition subtraction… …   Wikipedia

• Addition-chain exponentiation — In mathematics and computer science, optimal addition chain exponentiation is a method of exponentiation by positive integer powers that requires a minimal number of multiplications. It works by creating a minimal length addition chain that… …   Wikipedia

• Subtraction without borrowing — A commonly known subtraction method is the borrowing method [Only a brief, informal discussion is included here until a formal entry of dynamic subtraction is provided.] . To perform a b using this method, b , the subtrahend, is written below a …   Wikipedia

• subtraction — Compound Com pound, a. [OE. compouned, p. p. of compounen. See {Compound}, v. t.] Composed of two or more elements, ingredients, parts; produced by the union of several ingredients, parts, or things; composite; as, a compound word. [1913 Webster] …   The Collaborative International Dictionary of English

• Addition chain — In mathematics, an addition chain is a sequence a 0, a 1, a 2, a 3, ... that satisfies: a 0 = 1, and :for each k >0: a k = a i + a j for some i , j < k .As an example: 1, 2, 3, 6, 12, 24, 30, 31 is an addition chain for 31, of length 7, since:2 …   Wikipedia

• addition — noun 1 sth that is added; process of adding sth ADJECTIVE ▪ useful, valuable, welcome, worthy ▪ important, major, notable, significant ▪ …   Collocations dictionary

• addition — ad|di|tion W1S3 [əˈdıʃən] n 1.) in addition used to add another piece of information to what you have just said ▪ The company provides cheap Internet access. In addition, it makes shareware freely available. in addition to sth ▪ In addition to… …   Dictionary of contemporary English