

Mi madre tiene cuarenta años.
[mi ˈmaðɾe ˈtjene kwaˈɾenta ˈaɲos.]
My mother is forty years old.
¿Cuesta cuarenta euros?
[¿ˈkwesta kwaˈɾenta ˈewɾos?]
Does it cost forty euros?
Vivo a cuarenta kilómetros de la ciudad.
[ˈbiβo a kwaˈɾenta kiˈlometɾoz ðe la θjuˈðað.]
I live forty kilometers from the city.
"cuarenta" is in the lesson "Big numbers" (Level 4), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,369 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.