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fundamental operation of arithmetic; the inverse of addition. If a and b are real numbers (see numbernumber,
entity describing the magnitude or position of a mathematical object or extensions of these concepts. The Natural Numbers

Cardinal numbers describe the size of a collection of objects; two such collections have the same (cardinal) number of objects if their
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), then the number ab is that number (called the difference) which when added to b (the subtractor) equals a (the subtrahend). In terms of addition the symbol −b is called the additive inverse of b with the property that the sum of a number and its inverse equals 0, or b+(−b)=0. It follows that −(−b)=b. The subtraction of b from a is the same as the addition of a and the inverse of b, or ab=a+(−b); e.g., when a=10 and b=5, then 10−5=10+(−5).
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The addition of one quantity with the negative of another; in a system with an additive operation this is formally the sum of one element with the additive inverse of another.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
However, when they reach high school and are introduced to brackets, mainly through algebra, it is time to reflect on subtraction.
This brings me to the third method of subtraction which unfortunately is not well known.
This paper is organized as follows: Section 2 describes the renormalization of N3LO interactions with five subtractions; Section 3 presents the numerical results for both uncoupled and coupled channels up to J = 6 and our main conclusions are given in Section 4.
Now let us turn to the renormalization of N3LO interactions with five subtractions. This approach introduces a renormalization scale [mu] (subtraction point), which denotes the momentum at which the subtractions are performed.
Experimental trials consisted of subtractions in the form a - b = c that were selected from the material provided by Thevenot et al.
A total of 16 subtractions for each size were used.
The objective of this paper is to analyze various technique for approximating LNS addition and subtraction. The paper is organized into seven major parts.
The first LNS architecture for addition and subtraction was introduced by Earl Swartlander in 1975 [2].
The Three Pigs activity can also be used to introduce subtraction. Instead of suppliers, a shopper comes for a specific number of bricks; this number is recorded on the chalkboard.
Here is a subtraction scenario involving regrouping: The Hundreds Pig gets 5 ten-by-ten flats and a group of 10 longs bound with a rubber band, for a total of 6 hundreds.
However, in order to provide the subject with some rationale for the point subtractions, subjects were instructed that the points subtracted from them were added to the other (fictitious) subject's point counter.
Currently, only a few states permit a subtraction for the R&D credit amount included in Federal taxable income when the full R&D credit is claimed.