Cet ouvrage explore les notions d'arithm tique de base, telles que la somme, la diff rence, le produit et le quotient. L'auteur y examine galement les diff rentes fa ons dont les nombres sont utilis s dans la vie quotidienne. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly...