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The mathematics of integers, rational numbers, real numbers, or complex numbers under addition, subtraction, multiplication, and division.
adj. ar·ith·met·ic (ăr′ĭth-mĕt′ĭk) also ar′ith·met′i·cal (ăr′ĭth-mĕt′ĭ-kəl)
1. Of or relating to arithmetic.
2. Changing according to an arithmetic progression: The increase in the food supply is arithmetic.

[Middle English arsmetike, from Old French arismetique, from Medieval Latin arismetica, alteration of Latin arithmētica, from Greek arithmētikē (tekhnē), (art) of counting, feminine of arithmētikos, from arithmein, to count, from arithmos, number; see ar- in Indo-European roots.]

ar′ith·met′i·cal·ly adv.
a·rith′me·ti′cian (-tĭsh′ən) n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adv.1.arithmetically - with respect to arithmeticarithmetically - with respect to arithmetic; "this problem is arithmetically easy"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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References in classic literature ?
He treated us around from behind the bar, and I decided that he had arithmetically evened things up handsomely.
I put it arithmetically, for the sake of putting it plain.
Swift, like Defoe, generally increases the verisimilitude of his fictions and his ironies by careful accuracy in details, which is sometimes arithmetically genuine, sometimes only a hoax.
Among them is a very little boy, who chews tobacco like a very big one; and a droning gentleman, who talks arithmetically and statistically on all subjects, from poetry downwards; and who always speaks in the same key, with exactly the same emphasis, and with very grave deliberation.
The Otway Basin totals comprise the arithmetically aggregated project fields (Casino-Henry-Netherby and Minerva).
But the 39-year-old is clinging to the positives as it's still arithmetically possible for Dundee to achieve mission impossible.
The report, to be considered on March 11, said the findings from the review identified that procedures were "followed correctly", the invoices were arithmetically correct and VAT number quoted, and were paid to a company "in good faith".
A day after the RBI made it clear that it is not having a relook at a contentious circular about recognising of bad assets, Goyal said: "Law cannot be a blind, wherein in 90 days arithmetically it becomes an NPA (Non-performing asset).
As more contemporary thinkers such as Slovenian philosopher Slavoj Zizek, a student of Lacan, have argued, the significance of his arithmetically dotty argument lies in the fact that many of us tend to succumb to what can be described as 'false binaries.'
Mr Johnson told the BBC yesterday: "You add to that the commitment the Governments already made to keep funding farmers and so on, there is literally arithmetically no money, and in addition we know, because the Governments accepted this, that the public finances will be worse as a result of the Brexit vote.
NAN reports that base effect relates to inflation in the corresponding period of the previous year; if the inflation rate was too low in the corresponding period of the previous year, even a smaller rise in the Price Index will arithmetically give a high rate of inflation now.