Réponse :
bonjour
Explications étape par étape :
A = (-3) × (-9-(-5))
=27 +5
=32
B = 11- (+3) × (-8)
=11-(-24)
=11+24
=35
C = 5-(25-5x6)
=5-(25-30)
=5-(-5)
=5+5
=10
D = (-2-5) × (+4) - 9
=-7x4 -9
=-28-9
=-37
E = 5 × (-4) + (-2) × (-7)
=-20 +14
=-6
F=3-(7-(-1) × (4-9))
=3 -(7+1x-5)
=3- (7-5)
=3-2
=1