Question

+13-{-2-[(-2)•(-10+5)]}​

Answer 1

+13 - {- 2 - [( -2)•( -10 + 5)]}

+ 13 - {- 2 - [ ( - 2) • ( - 5)]}

+ 13 - {- 2 - [+ 10]}

+ 13 - { - 2 - 10}

+ 13 - { - 12}

+ 13 + 12

+ 25