Question

13 . 70 - 50 [(19 - 3²) : 2 + 2³ ]

Answer 1

     13 . 70 - 50 [ ( 19 - 3²) : 2 + 2³ ]

=    13.7.10  - 5.10 . [ ( 19 - 9):2 + 8]

=     13.7.10 - 5.10 . [  10: 2 +8]

= 13.7.10 - 5.10 . [ 5 + 8]

= 13.7.10 - 5.10 .13

= 13.10 .( 7-5)

= 13.10 .2

= 260

Answer 2

=910-50*[(19-9):2+8]

=910-50*[5+8]

=910-50*14

=210