Quick answer
"Dos" is an adjective which is often translated as "two", and "cincuenta y siete" is an adjective which is often translated as "fifty-seven". Learn more about the difference between "dos" and "cincuenta y siete" below.
dos(
dohs
)
An adjective is a word that describes a noun (e.g. the big dog).
1. (number)
a. two
Tenemos dos hijos.We have two children.
A masculine noun is used with masculine articles and adjectives (e.g. el hombre guapo, el sol amarillo).
2. (number)
a. two
El dos es mi número de la suerte.Two is my lucky number.
b. second (in dates)
Loli cumple años el dos de agosto.Loli's birthday is on the second of August.
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cincuenta y siete
An adjective is a word that describes a noun (e.g. the big dog).
1. (number)
a. fifty-seven (cardinal)
Mañana cuando nos veamos, te devuelvo los cincuenta y siete euros que te debo.When we meet tomorrow, I'll give you back the fifty-seven euros I owe you.
b. fifty-seventh (ordinal)
Hoy celebramos el cincuenta y siete aniversario de nuestra independencia.We're celebrating the fifty-seventh anniversary of our independence today.
A masculine noun is used with masculine articles and adjectives (e.g. el hombre guapo, el sol amarillo).
2. (number)
a. fifty-seven
Cincuenta más siete son cincuenta y siete.Fifty plus seven is fifty-seven.
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