N = 10 +5×(10+5)
B = 6×[13-(5-2)
C=[(8-2)×8] +4+8
D= [(31-5)-2*7*6*2
F=21+8*2-12+(13-9)×21-(10-6)
6=66+6-(11-7)*3*4*(4-2) 12

Aidez moi svp
Merci d’avance