Salut !
A = 3 - 4 x (5 - 2)
A = 3 - 4 x 3
A = 3 - 12
A = -9
B= 3x4-2x(4-1)
B= 3x4-2x3
B=12-6
B=6
C=5-2x3+2x7
C=5-6+2x7
C=5-6+14
C=-1+14
C=13
D=-3+(1-5)x(-6)
D=-3+(-4)x(-6)
D=-3+24
D=27
E=1-2x3+4x(-5)
E=1-6+4x5
E=1-6+20
E=-5+20
E=15
F= 1+(-2)^2-(-3)^2
F=1+4-(-3)^2
F=1+4-9
F=5-9
F=(-4)
