((3*12)+-5)-7
(3*12)+(-5-7)
(3*12)-(7--5)
((3*12)-7)+-5
(3*(7--5))-12
-5+((3*12)-7)
(-5+(3*12))-7
-5+((12*3)-7)
(-5+(12*3))-7
-5-(7-(3*12))
(-5-7)+(3*12)
-5-(7-(12*3))
(-5-7)+(12*3)
((12*3)+-5)-7
(12*3)+(-5-7)
(12*3)-(7--5)
((12*3)-7)+-5
((7--5)*3)-12
1:(3-7)×(5-11)2:(5-11)×(3-7)3:(7-3)×(11-5)4:(7×11-5)÷35:((7×11)-5)÷36:(11-5)×(7-3)7:(11×7-5)÷38:((11×7)-5)÷3