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Introduction to Numbers in Portuguese

Portuguese numbers

In this unit, we’ll learn about Portuguese numbers, known as númerosnumbers or numeraisnumerals .
Números are just one type of quantificadoresquantifiers , but they are so important that we thought they deserved their own unit. We’ll explore some of the other quantifiers in the How Much? How Many? unit. But for now, let’s go over the números, which simply tell us the specific, numeric amount of a particular something.

The 5 Types of Numbers:

We’ll focus on the cardinal numbers up to 15 in this first unit (Numbers 1) and then in Numbers 2, we’ll practice forming higher numbers in the tens, as well as numbers in the hundreds and thousands. In Numbers 3, we’ll explore ordinal, multiplier, fractional, and collective numbers. Below you’ll find a handy reference chart with all 5 types of Portuguese numbers.

Portuguese Numbers Reference Chart:

Portuguese Numbers 0-1001 (Cover)

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Números
Cardinal Ordinal Multiplier Fractional Collective
0 zero
1 I um
uma
primeiro
2 II dois
duas
segundo duplo
dobro
meio
metade
duo
dueto
3 III três terceiro triplo terço trio
4 IV quatro quarto quádruplo quarto quarteto
5 V cinco quinto quíntuplo quinto quinteto
6 VI seis sexto sêxtuplo sexto meia dúzia
sexteto
7 VII sete sétimo séptuplo sétimo
8 VIII oito oitavo óctuplo oitavo
9 IX nove nono nono novena
10 X dez décimo décuplo décimo dezena
década
11 XI onze décimo primeiro undécuplo onze avos
12 XII doze décimo segundo duodécuplo doze avos dúzia
13 XIII treze décimo terceiro treze avos
14 XIV catorze décimo quarto catorze avos
15 XV quinze décimo quinto quinze avos
16 XVI dezasseis décimo sexto dezasseis avos
17 XVII dezassete décimo sétimo dezassete avos
18 XVIII dezoito décimo oitavo dezoito avos
19 XIX dezanove décimo nono dezanove avos
20 XX vinte vigésimo vinte avos
21 XXI vinte e um vigésimo primeiro vinte e um avos
25 XXV vinte e cinco vigésimo quinto vinte e cinco avos quarteirão
30 XXX trinta trigésimo trinta avos
40 XL quarenta quadragésimo quarenta avos
50 L cinquenta quinquagésimo cinquenta avos
60 LX sessenta sexagésimo sessenta avos
70 LXX setenta septuagésimo setenta avos
80 LXXX oitenta octogésimo oitenta avos
90 XC noventa nonagésimo noventa avos
100 C cem centésimo cem avos centena
101 CI cento e um centésimo primeiro cento e um avos
200 CC duzentos ducentésimo duzentos avos
300 CCC trezentos tricentésimo trezentos avos
400 CD quatrocentos quadringentésimo quatrocentos avos
500 D quinhentos quingentésimo quinhentos avos
600 DC seiscentos sexcentésimo seiscentos avos
700 DCC setecentos septingentésimo setecentos avos
800 DCCC oitocentos octingentésimo oitocentos avos
900 CM novecentos nongentésimo novecentos avos
1000 M mil milésimo mil avos milhar
1001 MI mil e um milésimo primeiro mil e um avos

Portuguese Numbers Notation

In some English-speaking countries, such as the US and UK, numbers are typically written as such: 12,345.67. In Portugal, however, it would be 12.345,67 with the comma and decimal point reversed. Alternatively, you may just see a space instead of a comma or decimal point for large whole numbers, as in 20 000 (instead of 20,000 or 20.000). Note: In our exercises, we typically avoid any spacing or punctuation, just to keep things simple when entering your response.