You could say "Tengo once años". (Pronounced TEHN-goh OHN-say AHN-yohs). Literally this means "I have eleven years", but is translated as "I am eleven years old".
Or...you could say "Soy de once años de edad". (Pronounced SOY DEH OHN-say AHN-yohs DEH ee-DAHD). Literally "I am of 11 years of age". It carries the same translation as above.
11- once (ohn-say) 12- doce (doe-say)
The number eleven is spelled 'once' (awn-say) in Spanish.
"I am 11" in Spanish is "Tengo once años". It is pronounced "TANE-go OWN-say AHN-yose". Please see the Related link below for confirmation of the translation.
in french, you say it onze in German 'elf' in spanish 'once'
Ella tiene 11 (ohn-say) años.
tengo 11(once) anos
¿Puede venir a las once?
' Te veo a las once'
fiesta mañana alas 11
Son las once (or 11 pm may be veintitres in some regions).
Son las once de la noche.
You say "El once de diciembre de dos mil diez".