# subtract

## Definitions

• WordNet 3.6
• v subtract take off or away "this prefix was subtracted when the word was borrowed from French"
• v subtract make a subtraction "subtract this amount from my paycheck"
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Webster's Revised Unabridged Dictionary
• Interesting fact: Ivory soap slogan "99-44/100% Pure" was cleverly invented by Harley Proctor who with the help of chemists determined that Ivory soap was only 56/100 pure. Proctor simply subtracted 56 from 100 and came up with "99-44/100% Pure"
• v. t Subtract To withdraw, or take away, as a part from the whole; to deduct; as, subtract 5 from 9, and the remainder is 4.
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Century Dictionary and Cyclopedia
• Interesting fact: Except for 2 and 3, every prime number will eventually become divisible by 6 if you either add or subtract 1 from the number. For example, the number 17, plus 1, is divisible by 6. The number 19, minus 1, is also divisible by 6
• subtract To withdraw or take away, as a part from a whole; deduct.
• subtract Synonyms Subtract, Deduct. See deduct.
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Chambers's Twentieth Century Dictionary
• Interesting fact: If you take any number, double it, add 10, divide by 2, and subtract your original number, the answer will always be 5.
• v.t Subtract sub-trakt′ to take away a part from the rest: to take one number or quantity from another to find their difference
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## Quotations

• John Bentley “What is high finance? It?s knowing the difference between one and ten, multiplying, subtracting and adding. You just add noughts. It?s no more than that.”
• Thomas Brackett Reed “They never open their mouths without subtracting from the sum of human knowledge.”
• Benjamin Franklin • Alexander Solzhenitsyn “Everything you add to the truth subtracts from the truth.”

## Etymology

Webster's Revised Unabridged Dictionary
L. subtractus, p. p. of subtrahere, to draw from beneath, withdraw, remove; sub, under + trahere, to draw. See Trace (v. t.), and cf. Substract
Chambers's Twentieth Century Dictionary
L. sub, under, trahĕre, tractum, to draw away.

## Usage

### In literature:

What is meant by adding or subtracting in this connection?
"Social Rights and Duties, Volume I (of 2)" by Sir Leslie Stephen
She was careful always to subtract a month from the remainder, for the summer holidays.
"The Rainbow" by D. H. (David Herbert) Lawrence
Or 'Think of an animal, a bird, or a fish, and to that add So-and-so, and subtract So-and-so,' and this results in a portrait.
"The Confessions of a Caricaturist, Vol. 1 (of 2)" by Harry Furniss
The subtraction is performed using 1's complement arithmetic.
"Preliminary Specifications: Programmed Data Processor Model Three (PDP-3)" by Digital Equipment Corporation
The figures would be added up, and subtracted, and divided.
"The Curse of Education" by Harold E. Gorst
The addition and subtraction of numbers under ten are made very much simpler by the use of the didactic material for teaching lengths.
"Dr. Montessori's Own Handbook" by Maria Montessori
And Isidro proceeded to subtract stealthily a skirt and shawl from wooden pegs set in the adobe wall where Valencia slept.
"The Treasure Trail" by Marah Ellis Ryan
Similarly, one point is subtracted for every three degrees below 70 deg.F.
"The Automobile Storage Battery" by O. A. Witte
Subtracting this from the pretended gain, \$6914,67 - 1949,98, gives 4964,69.
"The Prison Chaplaincy, And Its Experiences" by Hosea Quinby
The consciousness of that subtracted the brightness from the day, the pleasure from the visit.
"The Paliser case" by Edgar Saltus
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### In poetry:

Only you and me
multiplied and divided
remain the same…
"Another Kind of Mathematics" by Nichita Stanescu
We hunt the cause of ruin, add,
Subtract, and put ourselves in pawn;
For all our scratching on the pad,
We cannot trace the error down.
"The Reckoning" by Theodore Roethke
"The result we proceed to divide, as you see,
By Nine Hundred and Ninety Two:
Then subtract Seventeen, and the answer must be
Exactly and perfectly true.
"The Hunting Of The Snark " by Lewis Carroll
The most which your bounty from you can subtract
Is an apple, a sweetmeat, a toy;
For so easy a virtue, so trifling an act,
You are paid with an innocent joy.
"Charity" by Charles Lamb
Freeman! thy neighbour also has liberties;
This may subtract his rights from thy heritage,--
But Freedom without moderations
Were but the licence of pirate nations.
"Freedom (In Alcaics.)" by Martin Farquhar Tupper
What though the moon on Trevi's fount,
Whilst we together drink, doth shine,
Can it the rural miles remount,
Or I subtract from mine?
Whilst Time hath scarce begun to count
The pleasant paths of thine.
"Fontana Di Trevi" by Alfred Austin

### In news:

Reducing healthcare cost through subtraction of care.
It's subtraction by additions for Angels.
Finally, a man of subtraction .
He is a man of subtraction .
INTERVIEWS Jens Lekman Adds Through Subtraction in Bittersweet 'I Know What Love Isn't' Video.
Addition by subtraction for the Wizards.
Lowe's seeks addition by subtraction .
Subtraction and Counting Division.
Embracing Both Additive and Subtractive Manufacturing.
State English learner program is ' subtractive education'.
Are you an additive person or a subtractive one.
Subtractive Plus Additive Equals More Than.
Gone are the addition and subtraction drills, the mind-numbing handouts.
10 am to 6 pm Wednesday (subtracts two hours.
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### In science:

Such background subtraction strategies have been successfully used in accelerator neutrino experiments.
A CsI(Tl) Scintillating Crystal Detector for the Studies of Low Energy Neutrino Interactions
But note that no inﬁnite background subtraction was needed.
Generalized entropy and Noether charge
Let us compute the subtracted two-point function G sub σ = π and θ = θ.
Worldsheet and Spacetime Properties of p-p' System with B Field and Noncommutative Geometry
In particular, it subtracts an inﬁnite contribution from the energy.
IIA/B, Wound and Wrapped
II string theory, the total energy of the combined brane-string system is thus divergent, but becomes ﬁnite after the usual subtraction.
IIA/B, Wound and Wrapped
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