Bonjour,
- 5 + 7 - 8 + 4 = - 5 - 8 + 7 + 4 = - 13 + 11 = -2
- 7 + 8 + 8 - 11 = -18 + 16 = -2
12 - 10 - 4 + 2 + 3 = 17 - 14 = 3
- 14 - 11 + 4 - 8 + 14 = -11 + 4 - 8 = -19 + 4 = -15
