Exo7 - Exercices de mathématiques
b) ?9+9 = 0 c) ?15+?12 = ?27 d) ?28+32 = 4 e) 6,6+(?16,8) = ?10,2 f ... Exercice 58 page 79. L = ?17?(?22,5)+9+(?12,5). M = ?5,7+15?11,5?(?4,2).
b) ?9+9 = 0 c) ?15+?12 = ?27 d) ?28+32 = 4 e) 6,6+(?16,8) = ?10,2 f ... Exercice 58 page 79. L = ?17?(?22,5)+9+(?12,5). M = ?5,7+15?11,5?(?4,2).