[Tex/LaTex] Exam class: labels “point”, “points” and “score” in spanish

Question

I'm using the exam class with \usepackage[spanish]{babel} and when I type \gradetable[v] the labels appears in english. The question name can be changed using \vqword{newlabelname} but I don't know how to change the others.

On the other hand, \question[3] write "3 points" and \question[1] "1 point". I want to change to the spanish words "3 puntos" and "1 punto".

Minimum Working Example:

\documentclass[11pt]{exam}
\usepackage[latin1]{inputenc}
\usepackage[spanish]{babel}

\begin{document}

\vqword{Problema}
\addpoints
\gradetable[v]

\begin{questions}
\addpoints
\question[5] Una pregunta.

\addpoints
\question[12] Otra pregunta, un poco más difícil.

\addpoints
\question[3] Una pregunta más sencilla

\end{questions}
\end{document} 

Answer 1

There are many customizable fixed words in the exam class. You can find all of them in the manual. For your example this suffices:

\documentclass[11pt]{exam}
\usepackage[latin1]{inputenc}
\usepackage[spanish]{babel}

\pointpoints{punto}{puntos}
\hpword{Puntos:}
\vpword{Puntos}
\htword{Totale}
\vtword{Totale:}
\vsword{Resultado}

\begin{document}

\vqword{Problema}
\addpoints
\gradetable[v]

\begin{questions}
\addpoints
\question[1] Una pregunta.

\addpoints
\question[12] Otra pregunta, un poco más difícil.

\addpoints
\question[3] Una pregunta más sencilla

\end{questions}
\end{document}