Bonjour
Exercice 1: (3 points) Calculer en détaillant les étapes
A = 2 x 30 -10 +5 - 15 - (20-10-2)
A = 60 - 10 + 5 - 15 - (20 - 12)
A = 60 - 10 + 5 - 15 - 8
A = 60 + 5 - 10 - 15 - 8
A = 65 - 33
A = 32
B = 3 X (6+2x3) -5x2
B = 3 x (6 + 6) - 10
B = 3 x 12 - 10
B = 36 - 10
B = 26
C = 24 + 6+2 [10 - (4 + 4 + 2) - 2]
C = 24 + 6 + 2 (10 - 10 - 2)
C = 24 + 6 + 2 x (- 2)
C = 24 + 6 - 4
C = 30 - 4
C = 26.
