bonjour
A = 12 - 11 + 25 - 17
= 37 - 28
= 9
B = - 2.1 - 9 + 6.4 - 8.5
= 6.4 - 19.6
= - 13.2
C = 14 - 7 + 2 - 3.75 - 5.25
= 16 - 16
= 0
D = - 31 + 13 + 8 - 19 - 17 + 59
= 80 - 67
= 13
A = 7 - 13 - 4 + 13
- 13 et 13 = 0
7 - 4 = 3
= 3
B = 13.5 - 8.1 - 6.9 - 5.5
- 8.1 - 6. 9 = - 15
13.5 - 5.5 = 8
8 - 15 = - 7
- 7
C= - 716 + 2 023 - 100 - 23 + 716
- 716 et 716 = 0
2023 - 23 = 2000
2000 - 100 = 1 990
= 1 990
D = 10.3 - 12 + 8.7 + 5.3 + 6 - 5.3
5.3 et - 5.3 = 0
10.3 + 8.7 = 19
19 - 12 + 6 = 19 - 6 = 13
= 13
bonne journée
