Bonjour aidez moi svp pour cet exercice de mathematique: A=39-5×7 ;B=20+40÷8-3,5×4 ;C=[8×(5-3)-10]+2×4 ;D=10-8÷2 et en dessous il ÿ'a une ligne :4×3-9 ; E=(120-85)×3-4×(72÷6+3×2).
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Bonjour,
A=39-5×7
A = 39 - 35
A = 4
B=20+40÷8-3,5×4
B = 20 + 5 - 14
B = 25 - 14
B = 11
C=[8×(5-3)-10]+2×4
C = (8 x 2 - 10) + 8
C = (16 - 10) + 8
C = 6 + 8
C = 14
D=10-8÷2
4×3-9
D = (10 - 4) / (12 - 9)
D = 6/3
D = 2
E=(120-85)×3-4×(72÷6+3×2)
E = 35 x 3 - 4 x (12 + 6)
E = 105 - 4 x 18
E = 105 - 72
E = 33.
Verified answer
Bonsoir
A=39-5×7
A = 39 - 35
A = 4
B=20+40÷8-3,5×4
B = 20 + 5 - 14
B = 25 - 14
B = 11
C=[8×(5-3)-10]+2×4
C = (8 x 2 - 10) + 8
C = (16 - 10) + 8
C = 6 + 8
C = 14
D= (10-8÷2) / (4×3-9)
D = (10 - 4) / (12 - 9)
D = 6/3
D = 2
E=(120-85)×3-4×(72÷6+3×2)
E = 35 x 3 - 4 x (12 + 6)
E = 105 - 4 x 18
E = 105 - 72
E = 33