Aidez moi svp c est un DTL pour demain

1
A = 57 - 4 x (3 + 7)
A = 57 - 4 x 10
A = 57 - 40
A = 17

B = 12 x [32 - (4 + 7) x 2`]
B = 12 x (32 - 11 x 2)
B = 12 x (32 - 22)
B = 12 x 10
B = 120

C = 25 - 8 - (3 + 1)
C = 25 - 8 - 4
C = 25 - 12
C = 13

D = 1 + 27
          2 x 3
D = 1 + 27/6
D = 1 x 6 / 1 x 6 + 27/6
D = 6/6 + 27/6
D = 33/6
D = 3 x 11 / 3 x 2
D = 11/2

E = 24/6 : 3
E = 24/6 x 1/3
E = 24/18
E = 6 x 4 / 6 x 3
E = 4/3