Unit 1
Lesson 1.5

Les nombres et le téléphone

Numbers and Phone Numbers

Knowing how to count and share a phone number is one of the most immediately practical skills in any language. In this lesson you'll learn the numbers 0–5 as active vocabulary, plus 6–15 as passive vocabulary, and the full set up to 20 in the grammar section. You'll hear Camille and Lucas exchange phone numbers in a very natural Parisian way — French people group phone numbers in pairs, not individually. Prêt ? Let's count!

Learning tips

Warm-up & Active Recall

Recap: In Lesson 1.4 you learned two -er verbs: 'travailler' (to work) and 'étudier' (to study), and you practised profession nouns with gender agreement. Remember: after 'être', profession nouns take no article — 'je suis professeur', not 'je suis un professeur'.
WordMeaning
travaillerto work
étudierto study
le professeurteacher / professor (male)
la professeureteacher / professor (female)
l'étudiantstudent (male)
l'étudiantestudent (female)
le médecindoctor
le bureauthe office
where
quewhat (in questions)

Dialog

Camille asks Lucas for his phone number and they exchange numbers. Notice how French phone numbers are stated: 'C'est le zéro un, deux trois, quatre cinq' — each number in a pair, preceded by 'le'. The word 'portable' means mobile/cell phone (literally 'portable phone'). 'Quel est ton numéro ?' (What's your number?) is a very useful phrase — 'quel' means 'what/which' and will appear frequently. 'C'est mon portable' = it's my mobile — 'mon' is the possessive adjective 'my' (masculine noun).

Camille
Lucas, quel est ton numéro de téléphone, s'il vous plaît ?
(Lucas, what is your number of telephone, if-it you pleases?)
Lucas, what is your phone number, please?
Lucas
Oui ! C'est le zéro un, deux trois, quatre cinq.
(Yes! It-is the zero one, two three, four five.)
Sure! It's zero one, two three, four five.
Camille
Merci ! Zéro un, deux trois, quatre cinq. C'est ton portable ?
(Thanks! Zero one, two three, four five. It-is your portable?)
Thanks! Zero one, two three, four five. Is that your mobile?
Lucas
Oui, c'est mon portable. Et toi, quel est ton numéro ?
(Yes, it-is my portable. And you, what is your number?)
Yes, that's my mobile. And you — what's your number?
Camille
Mon numéro de téléphone, c'est le zéro trois, cinq deux, un quatre.
(My number of telephone, it-is the zero three, five two, one four.)
My phone number is zero three, five two, one four.
Lucas
Merci, Camille ! Zéro trois, cinq deux, un quatre.
(Thanks, Camille! Zero three, five two, one four.)
Thanks, Camille! Zero three, five two, one four.

Vocabulary

Active words

WordIPATranslationNote
zéro/ze.ʁo/zeroThe starting point for French phone numbers. 'Numéro zéro' is how you start a sequence.
un/œ̃/oneNasal vowel /œ̃/. Note: 'un' is both the number and the indefinite article (a/an) for masculine nouns.
deux/dø/twoThe rounded /ø/ vowel — lips in 'o' position, try to say 'ay'. Very different from English 'two'.
trois/tʁwa/threeContains the /tʁwa/ cluster — the French 'r' is uvular (back of throat). Practice: 'twah' with a French r.
quatre/katʁ/fourThe 're' ending is barely pronounced: /katʁ/, almost like 'katr'. The 'e' is very short.
cinq/sɛ̃k/fiveThe 'q' in 'cinq' is pronounced: /sɛ̃k/. It ends in a 'k' sound — unlike most final consonants in French.
le numéro/lə ny.me.ʁo/the numberMasculine noun. 'Quel est ton numéro ?' = What's your number? Use 'le numéro de téléphone' for phone number.
le téléphone/lə te.le.fɔn/the telephone / phoneMasculine noun. Used in 'numéro de téléphone'. The word is nearly identical to English — a useful cognate.
le portable/lə pɔʁ.tabl/the mobile phone / cell phoneMasculine noun. Literally 'portable'. The most common word for mobile/cell phone in everyday French.
s'il vous plaît/sil vu plɛ/please (formal)Formal polite request — use with strangers, authority figures, or anyone you'd address as 'vous'. Lesson 1.6 covers 's'il te plaît' (informal).

Passive words

WordIPATranslationNote
six/sis/
sept/sɛt/
huit/ɥit/
neuf/nœf/
dix/dis/
onze/ɔ̃z/
douze/duz/
treize/tʁɛz/
quatorze/ka.tɔʁz/
quinze/kɛ̃z/

Useful chunks

WordTranslation
quel est ton numéro ?what's your number?
numéro de téléphonephone number
Pronunciation: The number 'deux' /dø/ contains the most challenging vowel in this lesson. English has no equivalent, but here's a trick: round your lips into a tight 'o' shape (as if whistling), then try to say the vowel in 'pay'. The tension between those two positions creates the French /ø/ sound. It's also heard in 'peu' (a little) and 'bleu' (blue), so practising it now will pay off many times over. Start slowly: 'duh' → round lips → 'dø'. Listen to Camille say 'deux' in the dialog and mimic it.

Grammar: Numbers 0-20

NombreFrançais
0zéro
1un
2deux
3trois
4quatre
5cinq
6six
7sept
8huit
9neuf
10dix
11onze
12douze
13treize
14quatorze
15quinze
16seize
17dix-sept
18dix-huit
19dix-neuf
20vingt

The grammar focus for this lesson is numbers 0–20 in French. The first 16 are individual words to memorise; 17, 18, and 19 are compounds built from 'dix' (10) plus the unit:

NumberFrench
0zéro
1un
2deux
3trois
4quatre
5cinq
6six
7sept
8huit
9neuf
10dix
11onze
12douze
13treize
14quatorze
15quinze
16seize
17dix-sept
18dix-huit
19dix-neuf
20vingt

For phone numbers, French speakers group digits in pairs and often precede the number with 'c'est le...' (it's...). So '01 23 45' becomes 'c'est le zéro un, vingt-trois, quarante-cinq' in full — though for now you'll practise with the simple digits you know.

Exercises

Fill in the Blanks

Complete each sentence with the correct French number or phone-related word.

  1. Mon numéro de  , c'est le 06...(the device you call people on — masculine noun)
  2. Un,  , trois, quatre, cinq.(the number between un and trois)
  3.  , un, deux, trois...(the number before un — the starting digit)
  4. Quel est ton numéro de   ?(the word for mobile/cell phone)
  5. S'il vous  , quel est votre numéro ?(polite request word — formal version)

Grammar Application

Write each number out in French words.

  1. Écris en lettres : 3 →  (the number 3 in French letters)
  2. Écris en lettres : 15 →  (the number 15 in French letters)
  3. Écris en lettres : 11 →  (the number 11 in French letters)
  4. Écris en lettres : 20 →  (the number 20 in French letters)
  5. Écris en lettres : 0 →  (the number 0 in French letters)

Translate into French

Translate each English sentence or phrase into French.

  1. What's your phone number?
  2. Zero one, two three, four five.
  3. It's my mobile.
  4. Please, your number?
  5. Thanks! One, two, three.

Build Your Own Sentence

Write a short exchange in French where you ask for and give a phone number. Use 'quel est ton numéro de portable ?', 'c'est le...', and the numbers you know.

Takeaway

French numbers 0–10 are individual words to memorise; 11–16 have unique forms; 17–19 are 'dix + unit'; and 20 is 'vingt' — and French phone numbers are always spoken in pairs, preceded by 'c'est le'.

Culture note: France uses a 10-digit phone number system where the first two digits indicate the type of line: numbers starting with '01' through '05' are landlines (by region), '06' and '07' are mobiles. Saying your number too quickly is considered unhelpful — French speakers naturally pause after each pair of digits to let the other person write it down. When asked for your number in France, expect to say it slowly and repeat it. It's also normal to confirm by asking 'vous avez compris ?' (did you get that?) or 'c'est bien ça ?' (is that right?).
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Explanations in: deen