# Appendix:Italian numbers

### Cardinal numbers[edit]

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 *cento* (“100”), *mille* (“1,000”), *milione* (“1,000,000”), *miliardo*, *bilione*, *trilione*, *biliardo*, *triliardo*, *quadrilione* and *quadriliardo*, individual numbers being formed by concatenation (sometimes with the elision of double vowels), e.g.

*trecentoquarantadue*(“342”)*millenovecentottantaquattro*(“1984”)

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

*cento e uno*(“one hundred and one”)*mille e una notte*(“one thousand and one nights”)*tremila e seicento dollari*(“three thousand and six hundred dollars”)

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

*cento e una pagina*(“one hundred and one pages”) (but:*centouno pagine*)*duecento e una rupia*(“two hundred and one rupees”)

- The Italian cardinal numbers may be used as nouns, pronouns, adjectives and the names of years.
- The number
*uno*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
*mille*becomes*mila*in the plural e.g.*duemila* - The plural of
*zero*is*zeri*. - The numbers
*milione*and*miliardo*(and above) are not adjectives, and take a*di*when followed by a noun e.g.*miliardi di lire*. - Numbers above a thousand are sometimes broken down into their constituent parts e.g.
*duemila*=>*due mila*(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
*Duecento*,*Trecento*, etc. (when capitalized) are used to represent centuries:

- 1301-1400 =
*il Trecento*(literally “the three hundred”) =*il quattordicesimo secolo*=*il secolo XIV*

- 1301-1400 =

- 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
*quattro*,*otto*,*venti*and*cento*is sometimes elided:

*ott'ore*― eight hours*vent'anni*― twenty years*quattrocchi*(“person who wears spectacles”, literally “four eyes”)*a quattr'occhi*(“in private”, literally “to four eyes”)

### Ordinal numbers[edit]

There are special words for the first ten normal ordinal numbers, and the rest are formed from the cardinal number by adding *-esimo* (see 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. *ventitreesimo*

0th | zeresimo |

1st | primo |

2nd | secondo |

3rd | terzo |

4th | quarto |

5th | quinto |

6th | sesto |

7th | settimo |

8th | ottavo |

9th | nono |

10th | decimo |

11th | undicesimo |

50th | cinquantesimo |

100th | centesimo |

1000th | millesimo |

- Some ordinal numbers have synonyms e.g.
*undecimo*and*decimoprimo*for*undicesimo*,*centosesto*for*centoseiesimo*,*centosettimo*for*centosettesimo*,*centottavo*for*centottesimo*,*centonono*for*centonovesimo*; 110th is*centodecimo* - 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[edit]

A simple combination of cardinal and ordinal numbers are used to form fractions.

e.g. *un quarto* (“a quarter”), *tre quarti* (“three quarters”), *quattro quinti* (“four fifths”)

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

### Decimals[edit]

These are written using a comma instead of a decimal point e.g. 3,1415926. Italians would say *vìrgola* (“comma”) instead of *punto* (“point”). For example: 3,5 would be verbalized as *“tre virgola cinque”*.

### Arithmetic[edit]

The word *più* is used for addition e.g.

*Due*― Two plus two equals four**più**due uguale a quattro

The word *meno* is used for subtraction e.g.

*Nove*― Nine minus two equals seven**meno**due uguale a sette

The word *per* is used for multiplication e.g.

*Tre*― three times seven equals twenty-one**per**sette uguale ventuno

The word *diviso* is used for division e.g.

*Dieci*― ten divided by two equals five**diviso**due uguale cinque

### Dictionary notes[edit]

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.