Counting by tens to 100 (treinta, cuarenta, cien)

The Tens (30 to 50)

Let's learn to count by tens! The numbers for thirty, forty, and fifty all end in -nta. Just like the smaller numbers you already know, they do not change to match the gender of the nouns they describe.

NumberSpanish
30treinta
40cuarenta
50cincuenta

You can use these directly before a noun, or with the verb tener and the word años to talk about someone's age.

My father is thirty years old.
Mi padre tiene treinta años.
Do you have forty or fifty books?
¿Tienes cuarenta o cincuenta libros?

The Tens (60 to 90)

The numbers for sixty through ninety also follow a predictable pattern. Pay close attention to the difference between 60 (sesenta) and 70 (setenta)—they look and sound very similar!

NumberSpanish
60sesenta
70setenta
80ochenta
90noventa
The gentleman is sixty years old.
El señor tiene sesenta años.
I see seventy trees in the park.
Veo setenta árboles en el parque.
They have eighty new books.
Ellas tienen ochenta libros nuevos.
Ninety men are working here today.
Hoy trabajan aquí noventa hombres.

One Hundred

The word for exactly one hundred is cien. Like the tens you just learned, it stays the same regardless of whether the noun it describes is masculine or feminine.

One hundred birds live in the forest.
Cien pájaros viven en el bosque.
The hotel does not have one hundred beds.
El hotel no tiene cien camas.