Réponse :
Explications étape par étape
Bonsoir
Effectue les calculs suivants en détaillant les pric
A = 8- 3 x 9 + 1 - 15 x 2 - 6
A = 8 - 27 + 1 - 30 - 6
A = -19 - 29 - 6
A = -54
B = ( 12 - (15+ ( 9 - (2+5 x 3)))
B = (12 - (15 + (9 - (2 + 15))))
B = (12 - (15 + (9 - 17)))
B = (12 - (15 - 8))
B = (12 - 7)
B = 5
C = 5 X (18 - 6) - (9-3) x 8
C = 5 x 12 - 6 x 8
C = 60 - 48
C = 12
12-8X2+12
= 12 - 16 + 12
= 24 - 16
= 8
D = 9x4-(11-3)*(7x4-6X4)
D = 36 - 8 x (28 - 24)
D = 36 - 8 x 4
D = 36 - 32
D = 4
3x7-10-0,5x20
= 21 - 10 - 10
= 21 - 20
= 1
E = 0,25 x 4 -14+5X5-2x5
E = 1 - 14 + 25 - 10
E = -13 + 15
E = 2
