Georges Ritt propose dans cet ouvrage une m thode pratique pour enseigner l'arithm tique aux l ves des coles primaires. L'ouvrage est divis en deux parties: la premi re partie traite de la th orie et pratique du calcul, tandis que la seconde partie se penche sur les applications de l'arithm tique dans la vie courante. Cet ouvrage est un classique pour les enseignants et les ducateurs.
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