This is the 1540th most frequent Spanish word.
serie
A "serie" in Spanish is a "series" in English, referring to a sequence or set of related things, events, or episodes.
Here, 'serie' means a collection or set of items that follow a common theme or sequence.
Tengo una serie de libros sobre historia.
I have a series of books about history.
In this case, 'serie' refers to a television show composed of episodes forming a continuous narrative or theme.
Me encanta esta serie de televisión.
I love this television series.
Here, 'serie' is used to describe a sequence or chain of related tasks or challenges, in this case, mathematical problems.