Question

18+[(25-30-40)16+16]

Answer 1

18+[(25-30-40)16+16]= 18+[(-45)16+16] =18+[-720+16]= 18+[-704]= 18-704=686

Answer 2

$\textbf{Solution:}$

=> 18 + [(25 - 30 - 40)16 + 16 ]

=> 18 + [(25 - 70) 16 + 16]

=> 18 + [-45 × 16 + 16]

=> 18 + [ -720+16 ]

=> 18 + (-704)

=> 18 - 704

=> -686

$\textbf{Thank you !!}$