Calculer chaque expression numérique. A= 3,5 + 1,5 × 5 + 1 ; B=(3 + 1,5) × (5 + 1) ; C=18 - 15 ÷ 6 - 2 ; D=(18 - 15) ÷ (6 - 2) ; E=2,4 ÷ 3 + 5 × 1,4 ; F=2,4 ÷ (

A = 3.5 +1.5 × 5 +1
A = 3.5 + 7.5 + 1
A = 11 + 1
A = 12

B = (3 + 1.5) × (5 + 1)
B = 4.5 × 6
B = 27

C = 18 - 15 ÷ 6 -2
C = 18 -2.5 -2
C = 15.5 -2
C = 13.5

D = (18 - 15) ÷ (6 - 2)
D = 3 ÷ 4
D = 0.75

E = 2.4 ÷ 3 + 5 × 1.4
E = 0.8 + 7
E = 7.8

F = 2.4 ÷ (3 + 5) × 1.4
F = 2.4 ÷ 8 * 1.4
F = 0.3 × 1.4
F = 0.42