Réponse:
Exercice 1 :
A = 10 - (19-4x3)
A = 10 - (19 - 12)
A = 10 - 7
A = 3
B = 2 x (7-5) x 3
B = 2 x 2 x 3
B = 4 x 3
B = 12
C = 7 - [8-(2+3)]
C = 7 - [8- 5]
C = 7 - 3
C = 4
D = 35 - (7+3 x 6) - 2
D = 35 - (7+18) - 2
D = 35 - 25 - 2
D = 10 -2
D = 8
Exercice 2:
1) 4 + 17 = 21
2) 23 x 3 = 69
3) 5 + 4 = 9 | 9-4 = 5 | 5 x 9 = 45
Voilà le début des exercices mais je dois arrêter là car Je dois me coucher.
