Quick answer
"Dos" is an adjective which is often translated as "two", and "ciento cincuenta" is an adjective which is often translated as "a hundred and fifty". Learn more about the difference between "dos" and "ciento cincuenta" 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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ciento cincuenta(
syehn
-
toh
 
seeng
-
kwehn
-
tah
)
An adjective is a word that describes a noun (e.g. the big dog).
1. (number)
a. a hundred and fifty (cardinal)
Compré ciento cincuenta globos para decorar el pasillo.I bought a hundred and fifty balloons to decorate the hallway.
b. one hundred and fifty (cardinal)
Ciento cincuenta personas fueron detenidas durante los disturbios de anoche.One hundred and fifty people were arrested during last night's riots.
c. one hundred and fiftieth (ordinal)
Mañana es el ciento cincuenta aniversario de la fundación de la cervecería.Tomorrow is the one hundred and fiftieth anniversary of the establishment of the brewery.
A masculine noun is used with masculine articles and adjectives (e.g. el hombre guapo, el sol amarillo).
2. (number)
a. a hundred and fifty
Se evacuaron más de mil familias. Ciento cincuenta perdieron su casa.Over a thousand families were evacuated. A hundred and fifty lost their houses.
b. one hundred and fifty
Ciento cincuenta de los refugiados eran niños.One hundred and fifty of the refugees were children.
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