From 0 to 100

Trenta, quaranta, cinquanta: the tens

You already know the numbers up to trenta. From 40 on, the tens end in -anta: quaranta, cinquanta, sessanta, settanta, ottanta, novanta, and then cento (100). A number between two tens is written as ONE word, tens first: trentadue (32), quarantacinque (45), novantanove (99). Two small rules come with it. Before uno and otto, which begin with a vowel, the tens lose their last vowel: ventuno, trentuno, ventotto, quarantotto. And tre at the end of a longer number takes an accent: ventitré, trentatré, quarantatré – but tre alone has none.

DigitsIn words
40quaranta
50cinquanta
60sessanta
70settanta
80ottanta
90novanta
100cento
DigitsIn wordsWhy
31trentunotrenta loses its a before uno
38trentottotrenta loses its a before otto
43quarantatrétre at the end takes an accent
57cinquantasettetens + units, one word
99novantanovetens + units, one word

– Quanti anni ha la signora Neri? – Novantadue, e sta benissimo!– How old is Mrs Neri? – Ninety-two, and she’s in great shape!

Phone numbers and prices

Italians often read a phone number in pairs of digits, as two-digit numbers: 347 85 21 90 is tre quattro sette, ottantacinque, ventuno, novanta. A zero at the start is said as a digit: 06 is zero sei. Prices use euro, which never changes in the plural: un euro, trenta euro, cento euro. The question is Quanto costa? – “How much is it?” – and the answer Costa cinquanta euro.

Quanto fa? – adding and subtracting

For a sum, ask Quanto fa? – “how much does it make?” The signs are più (+), meno (−), per (×) and diviso (÷), and the result comes with fa: Due più tre fa cinque. Dieci meno quattro fa sei. Sette per otto fa cinquantasei. Cento diviso due fa cinquanta. Fa stays singular even when the numbers are big.

– Quanto fa nove per sei? – Fa cinquantaquattro.– What’s nine times six? – Fifty-four.

Words in this lesson

WordMeaningExample
undicieleven (11)Il treno parte dal binario undici.
The train leaves from platform eleven.
dodicitwelve (12)Siamo dodici in classe.
There are twelve of us in class.
tredicithirteen (13)Marta ha tredici anni.
Marta is thirteen.
sedicisixteen (16)Abito in via Dante, sedici.
I live at 16 Via Dante.
diciassetteseventeen (17)Per molti italiani il diciassette porta sfortuna.
For many Italians, seventeen brings bad luck.
diciottoeighteen (18)Luca compie diciotto anni domani.
Luca turns eighteen tomorrow.
diciannovenineteen (19)Nella classe di Sara ci sono diciannove ragazzi.
There are nineteen kids in Sara’s class.
ventitwenty (20)Venti più venti fa quaranta.
Twenty plus twenty is forty.
ventitrétwenty-three (23)Ventitré più sette fa trenta.
Twenty-three plus seven is thirty.
ventottotwenty-eight (28)Di solito febbraio ha ventotto giorni.
February usually has twenty-eight days.
trentathirty (30)Aprile ha trenta giorni.
April has thirty days.
cinquantafifty (50)Il biglietto costa cinquanta euro.
The ticket costs fifty euros.
novantaninety (90)La lezione dura novanta minuti.
The lesson lasts ninety minutes.
centoa hundred (100)Cento meno uno fa novantanove.
A hundred minus one is ninety-nine.

Exercises

This lesson has 10 exercises in the app:

  • multiple choice: 3
  • match the pairs: 1
  • fill the gap: 2
  • build the sentence: 1
  • translate the sentence: 2
  • listen and type: 1

Try the first one

Which word is 38?

  1. trentatto
  2. trenta otto
  3. trentaotto
  4. trentotto

The answer, the other exercises, the audio and your progress are in the app – free at A0 and A1.