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Ten is the base of the decimal numeral system, by far the most common system of denoting numbers both in spoken and written language. For this reason, any number can be instantly multiplied by ten by adding a zero to the end (855 * 10 = 8,550). The basis for choice of ten is presumably that ten is the number of fingers (digits) of the human body.
Ten is the sum of the first three primes.
A collection of ten items (most often ten years) is called a decade.
A decapod crustacean has ten limbs.
There are ten cents in a dime, itself one tenth of a dollar. The word was shortened from decime.
People were traditionally tithed one tenth of their produce.
Ten in numeral systems
It takes ten to make a minyan.
With ten being the base of the decimal system, a scale of 1 to 10 is often used to rank things, as a smaller version of a 1-to-100 scale (as is used in percentages). Something that scores perfectly is "a perfect ten". A person who is extremely attractive and physically flawless is often said to be "a ten", from the idea of ranking that person's appearance and sex appeal on a 1-to-10 scale.
Counting from one to ten before speaking is often done in order to cool one's temper.
Other uses include:
See also: eight, nine, ten, eleven, twelve, integer, list of numbers.
This article is about the number. For the year AD 10, see 10.
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