grammar.numbers.cardinal
Cardinal numbers: uno to millones
16–29 fuse (dieciséis, veintiuno); 31+ use y (treinta y dos); cientos agree (doscientas personas); mil never takes un; millón takes de before nouns.
grammarA1v0.1.0
Explication
Key mechanics: uno shortens to un before masculine nouns (un café, veintiún años) and becomes una for feminine (veintiuna páginas). Cien alone, ciento in 101–199 (ciento cinco); 200–900 agree: cuatrocientas casas.
Mil is bare (mil dólares, dos mil), millón is a noun: un millón de habitantes, dos millones de pesos. Y appears only between tens and units: ciento treinta y cinco — never *ciento y treinta.
Exemples
Son quinientas veintiuna entradas.
That's five hundred twenty-one tickets.
That's five hundred twenty-one tickets.
Région: global
La ciudad tiene dos millones de habitantes.
The city has two million inhabitants.
The city has two million inhabitants.
Région: global