Title: Der Zahlenteufel
Description: Annoyed with his math teacher who assigns word problems and won't let him use a calculator, twelve-year-old Robert finds help from the number devil in his dreams.
Subjects: Fiction, Natural Numbers, Mathematics, Dreams, Children's fiction, Adventure and adventurers, fiction, Dreams, fiction, Arithmetic, fiction, Jugendbuch, Junge, Kinderbuch, Magie, Mathematik, Scherz, Spaß, Traum, Unterhaltungsmathematik, Juvenile fiction