Resposta :
A)66:[2-5]-[18:6]=
66 : [-3] - [ 3]
-22 - 3
-25
B)[-17-3]:4-3=
[ -20] : 4 -3
-5 -3
-8
C)36:[14-20]+[42:3]=
36 :[-6] +[14]
-6 +14
+8
D)-54:[6-3]-19=
-54 :[3] -19
-18 -19
-37
66 : [-3] - [ 3]
-22 - 3
-25
B)[-17-3]:4-3=
[ -20] : 4 -3
-5 -3
-8
C)36:[14-20]+[42:3]=
36 :[-6] +[14]
-6 +14
+8
D)-54:[6-3]-19=
-54 :[3] -19
-18 -19
-37