Twelve-year-old Robert hates his maths teacher. He sets his class boring problems and won't let them use their calculators. Then in his dreams Robert meets the Number Devil who brings the subject magically to life. The Number Devil knows how to make maths devilishly simple.
- Limba : Engleza
- Data Publicarii : 01 Sep 2008
- Format : Paperback
- Numar pagini : 264
- ISBN : 9781847080530