Can you match the ages of these children in English to the Spanish?
(Listen to the Spanish and practise speaking Spanish yourselves.)
I am three years old. I am one year old. I am two years old.
Tengo dos años. Tengo tres años. Tengo un año.
What do you think años/año means in English? What does it sound like in English?
Note: uno is shortened to un before singular masculine nouns.