Réponse :
bonsoir
A = - 7 - 4 + 13 - 5
= - 16 + 13
= - 3
B = - 1 - 4 - 6 + 7 + 8
= - 11 + 15
= 4
E = - 1 - 10 - 6 + 7
= 7 - 17
= - 10
F = 2.4 - 11.36 - 8.1 + 5.6 + 4.7
= 12.7 - 19.46
= - 6 .76
C = - 4 + 7 + 5 - 3 - 8 - 2
= 12 - 17
= - 5
D = 6 - 9 + 12 - 10 + 4 + 1 + 4
= 27 - 19
= 8
Explications étape par étape :