Rudy is officially Eris's tutor, but she doesn't want to learn anything but magic. As Rudy struggles to get her interested in other subjects, he realizes that non-stop lessons are causing her stress and proposes a day off in the city.
Do you see how useful arithmetic can be now?
أرأيتِ فائدة الحساب الآن؟
Verstehst du jetzt,
wie nützlich Rechnen sein kann?
¿Ves lo útil que es la aritmética?
¿Ahora veis lo útiles 
que pueden ser las mates?
Vous avez compris l’intérêt
de maîtriser le calcul ?
Ora avete capito l'importanza dell'aritmetica?
Entende como a aritmética pode ser útil?
Ну что, теперь понимаете,
насколько полезна арифметика?