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Arithmetic
Arithmetic (from the Greek ἀριθμός arithmos, "number") is a branch of mathematics that consists of the study of numbers, especially the properties of the traditional operations between them—addition, subtraction, multiplication and division. Arithmetic is an elementary part of number theory, and number theory is considered to be one of the top-level divisions of modern mathematics, along with algebra, geometry, and analysis. The terms arithmetic and higher arithmetic were used until the beginning of the 20th century as synonyms for number theory and are sometimes still used to refer to a wider
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“
I could never have gone far in any science because on the path of every science the lion Mathematics lies in wait for you.
”
― Surprised by Joy: The Shape of My Early Life
― Surprised by Joy: The Shape of My Early Life
“
Clever dicks will notice that the figure changes as the boat gets deeper or lighter because the area of the waterplane changes. You can go on enjoying arithmetic all night like this and never go sailing at all.
”
― Sell Up & Sail
― Sell Up & Sail
