Réponse :

bonsoir

A = 6 × (12 - 7 ) = 6×5 = 30

B = 3+ 136/8 =  3 + 17 = 20

C =2 × (1+6) = 2×7 = 14

D = 1/4 × 22×6 = 33

E = 17 - (4 + 9 ) = 17 - 13 = 4

F = (25+11) / (11-5 ) = 36/6 = 6

voila :)