30 2 X 25 Overline 13 3

30 + [{ – 2 x (25 -)}]

Answers:

30 + [{ – 2 x (25 – \overline { 13 -3 })}]
= 30 + [{ – 2 x (25 – 10)}]
= 30 + [{ – 2 x 15}]
= 30 + [-30]
= 30 – 30
= 0