Question

555-5*[5*(55*0)-(5*5)]*5=. 5+5*[50+(5-5:5)-(55-5*9)]:4=. [11-(6+6*6-6:6+6*6):7]×6=. [(7+7)*(7-7):(7+7)*7]*7+7= ​

Answer 1

555-5•[5•(55•0)-(5•5)]•5=
555-5•[5•0-25]•5=555-5•(0-25)•5=555-5•(-25)•5=555+125•5=555+625=1180

5+5•[50+(5-5:5)-(55-5•9)]:4=5+5•[50+(5-1)-(55-45)]:4=5+5•(50+4-10):4=5+5•44:4=5+220:4=5+55=60

[11-(6+6•6-6:6+6•6):7]•6=[11-(6+36-1+36):7]•6=[11-77:7]•6=(11-11)•6=0•6=0

[(7+7)•(7-7):(7+7)•7]•7+7=(14•0:14•7)•7+7=0•7+7=0+7=7