Brazilian Portuguese Numbers: 1 to 100
Learning cardinal numbers from 1 to 100 in Brazilian Portuguese is quite straightforward once you master the base digits, the tens, and a few unique rules regarding gender and pronunciation.
1. Base Digits (1-10)
The numbers from one to ten form the foundation of counting:
- 1: um / uma
- 2: dois / duas
- 3: três
- 4: quatro
- 5: cinco
- 6: seis
- 7: sete
- 8: oito
- 9: nove
- 10: dez
2. The Teens (11-19)
The numbers from 11 to 19 have their own specific names:
- 11: onze
- 12: doze
- 13: treze
- 14: catorze (or less commonly, quatorze)
- 15: quinze
- 16: dezesseis
- 17: dezessete
- 18: dezoito
- 19: dezenove
3. The Tens (20-90)
Once you reach twenty, the tens follow a regular pattern:
- 20: vinte
- 30: trinta
- 40: quarenta
- 50: cinquenta (note: the 'u' is pronounced in this word)
- 60: sessenta
- 70: setenta
- 80: oitenta
- 90: noventa
4. Forming Compound Numbers
To form numbers between the tens (like 21, 35, 99), you simply combine the ten and the unit using the conjunction e (and).
- vinte e um (twenty-one)
- quarenta e cinco (forty-five)
- noventa e nove (ninety-nine)
5. Gender Inflection for 1 and 2
In Portuguese, the numbers 1 and 2 change depending on the gender of the noun they are describing. This applies even when they are part of a larger compound number.
- Masculine: Use um and dois for masculine nouns, as well as for general counting, mathematics, and phone numbers.
- um carro (one car)
- dois meninos (two boys)
- Feminine: Use uma and duas when placed before feminine nouns.
- uma casa (one house)
- duas casas (two houses)
- vinte e uma mulheres (twenty-one women)
6. The Rule of "Meia" (6)
When reciting telephone numbers, ID numbers, or numerical series, Brazilians commonly substitute the word seis (six) with meia. Meia is short for meia-dúzia (half a dozen). This is done to avoid phonetic confusion over the phone between seis (six) and três (three), which sound very similar.
- o voo 467 - quatro meia sete (flight 467 - four six seven)
- Meu telefone é nove meia dois... (My phone number is nine six two...)
7. The Number 100: Cem vs. Cento
The number 100 has two forms depending on what comes after it:
- Use cem when representing exactly 'a hundred' with no other numbers following it.
- Eu tenho cem reais. (I have exactly one hundred reais.)
- Change it to cento e... when it is followed by a smaller number (tens or units).
- cento e um (one hundred and one)
- cento e trinta e cinco (one hundred and thirty-five)