=9* 1 1 1 1 1*7+ 1 1 1 1*37

= 1 1 1 1 1*63+ 1 1 1 1 1*37

= 1 1 1 1 1*(63+37)

= 1 1 1 1 1* 100

= 1 1 1 1 100

888*9- 1 1 1*22

= 1 1 1*8*9- 1 1 1*22

= 1 1 1*72- 1 1 1*22

= 1 1 1*(72-22)

= 1 1 1*50

=5550