Appendix:Italian numbers

Cardinal numbers
Italian cardinal numbers, of any length, may be written as a single, continuous word.

The first hundred of them are listed in the following table.

Larger numbers are based upon, , , , , , , , and , individual numbers being formed by concatenation (sometimes with the elision of double vowels), e.g.

There is a variant form for numbers composed of and, commonly used when quoting prices, e.g.

In this form a following noun is always singular and has to agree for gender:
 * (but: )


 * The Italian cardinal numbers may be used as nouns, pronouns, adjectives and the names of years.
 * The number follows the rules of the indefinite article when used as an adjective (un espresso, uno scotch, una birra e un'aranciata).
 * Numbers ending in "3" (starting with twenty-) are stressed on the last syllable and written as -tré.
 * The number becomes  in the plural e.g.
 * The plural of is.
 * The numbers and  (and above) are not adjectives, and take a  when followed by a noun e.g..
 * Numbers above a thousand are sometimes broken down into their constituent parts e.g. =>  (this is especially true of very large round numbers). A period is used instead of a comma to separate thousands from hundreds e.g. 25.000 (twenty-five thousand). Numbers above a hundred thousand are often broken down into groups of three e.g. 860.789 => ottocentosessantamila settecentoottantanove.
 * The numbers, , etc. (when capitalized) are used to represent centuries:
 * 1301-1400 = =  = il secolo XIV


 * The noun forms of the numbers 1 to 31 are used for the days of a month e.g. il trenta di maggio.
 * Years are sometimes written as separate words e.g. duemila e sette for 2007
 * The final vowel of, , and  is sometimes elided:

Ordinal numbers
There are special words for the first ten normal ordinal numbers, and the rest are formed from the cardinal number by adding -esimo, as in the following table:

The final "o" or "e" is dropped from the cardinal number, unless it is an é in which case it just loses the accent, e.g..


 * Some ordinal numbers have synonyms e.g. and  for,  for ,  for ,  for ,  for ; 110th is.
 * The ordinal numbers are used as adjectives and as fractions.
 * When used as adjectives, they agree in gender and number with the nouns that they modify.

Fractions
A simple combination of cardinal and ordinal numbers are used to form fractions, e.g., ,.

The word is used to represent a half, and is used in such expressions as  (10,500,000; not ten million and one-half).

Decimals
These are written using a comma instead of a decimal point e.g. 3,1415926. Italians would say instead of. For example: 3,5 would be verbalized as.

Arithmetic
The word is used for addition e.g.

The word is used for subtraction e.g.

The word is used for multiplication e.g.

The word is used for division e.g.

Dictionary notes
Most paper and online dictionaries only include a small number of Italian numbers – normally all simple numbers up to about 21, all the tens to 100 and then the large round numbers.

There are an infinite number of Italian numbers and it would be silly to attempt to include them all. Our aim is therefore to include all numbers up to 1000 (many added by a bot), and then to include numbers that demonstrate the various rules of formation of larger ones. Our criteria for inclusion also allows any other number to be included if use of it is found in books etc.