Teaching guidelines +/- 15 minutes

This lesson covers Italian cardinal numbers from 1 to 20, introducing essential words like uno (one), cinque (five), dieci (ten), and venti (twenty). You'll learn the basic counting units and understand irregular forms from 11 to 19, plus common expressions like 'un paio' meaning 'a couple'.
  1. The numbers from 0 to 9 are called "unità".
  2. From 11 to 19 are irregular numbers and do not follow a specific pattern.
  3. The 0 is pronounced "zero".

Numeri dall' 1 al 20 (Numbers from 1 to 20)

1: Uno (One)11: Undici (Eleven)
2: Due (Two)12: Dodici (Twelve)
3: Tre (Three)13: Tredici (Thirteen)
4: Quattro (Four)14: Quattordici (Fourteen)
5: Cinque (Five)15: Quindici (Fifteen)
6: Sei (Six)16: Sedici (Sixteen)
7: Sette (Seven)17: Diciassette (Seventeen)
8: Otto (Eight)18: Diciotto (Eighteen)
9: Nove (Nine)19: Diciannove (Nineteen)
10: Dieci (Ten)20: Venti (Twenty)

Exceptions!

  1. 'Un paio' means 2. Example: 'un paio di ore' (a couple of hours).

Exercise 1: Numeri cardinali: la base

Instruction: Fill in the correct word.

Show translation Show answers

Tre, Quindici, Nove, Diciotto, Venti, Otto, Dieci, Tredici

1. 10:
...
(Ten)
2. 3:
...
(Three)
3. 15:
...
(Fifteen)
4. 18:
...
(Eighteen)
5. 8:
...
(Eight)
6. 20:
...
(Twenty)
7. 9:
...
(Nine)
8. 13:
...
(Thirteen)

Exercise 2: Multiple Choice

Instruction: Choose the correct solution

1. Ho comprato _____ mele per la festa.

(I bought _____ apples for the party.)

2. Ci sono _____ studenti in classe oggi.

(There are _____ students in class today.)

3. Abbiamo ricevuto _____ email questa settimana.

(We received _____ emails this week.)

4. Ho invitato _____ persone alla conferenza.

(I invited _____ people to the conference.)

5. La festa è iniziata alle _____ e trenta.

(The party started at _____ thirty.)

6. Abbiamo ordinato _____ di copie del libro.

(We ordered _____ copies of the book.)

Cardinal Numbers: The Basics

This lesson introduces Italian cardinal numbers from 1 to 20, essential for everyday counting and communication. You will learn both the pronunciation and spelling of these fundamental numbers.

Numbers from 1 to 20

1: Uno11: Undici
2: Due12: Dodici
3: Tre13: Tredici
4: Quattro14: Quattordici
5: Cinque15: Quindici
6: Sei16: Sedici
7: Sette17: Diciassette
8: Otto18: Diciotto
9: Nove19: Diciannove
10: Dieci20: Venti

Key Concepts

  • The numbers from 0 to 9 are considered "units" in Italian numbering.
  • Numbers 11 through 19 are irregular and do not follow a simple pattern, so they must be memorized individually.
  • The number 0 is pronounced "zero" in Italian.
  • The phrase "un paio" means "a couple" or "two," as in "un paio di ore" (a couple of hours).

Comparing English and Italian Numbers

In English, numbers often have a consistent structure, especially for numbers 11 to 19 (e.g., eleven, twelve, thirteen). Italian also uses distinct words but they are less predictable, so special attention is needed when learning these. The word "zero" is the same in both languages, making it easy to remember.

Useful terms related to numbers:

  • unità: units (digits from 0 to 9)
  • un paio: a couple (two)

By understanding these basic numbers and concepts, you build a strong foundation for counting higher numbers and using numerals in everyday Italian.

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Fabio Pirioni

Bachelor in Humanities

University of Udine

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Last Updated:

Thursday, 17/07/2025 11:38