Question

286 - { 122 + 77 - ( 12 + 21 ) }

Answer 1

286 - { 122 + 77 - ( 12 + 21 ) }

=286 - { 122 + 77 - 33 }

=286 - {199-33}

=286 - 166=120

Answer 2

286 - { 122+77- (12 + 21) }

=286 - {122 + 77 - 33}

= 286 - 166

= 120

Answer 3

286 - { 122 + 77 - ( 12 + 21 ) }

= 286 - { 122+77 - 33 }

= 286 - { 199 -33 }

= 286 - 166

= 120

Answer 4

286- {122+77 -( 12+21) }

= 286 - {122+77- 33}

= 286 - 166

=120