Tìm kết kết quả phép tính: \(15.\left\{ {32:\left[ {6-5 + 5.\left( {9:3} \right)} \right]} \right\}.\)

Ta có:

\(\begin{array}{*{20}{l}}
{15.\left\{ {32:\left[ {6 – 5 + 5.\left( {9:3} \right)} \right]} \right\}}\\
{ = 15.\left[ {32:\left( {6 – 5 + 5.3} \right)} \right]}\\
{ = 15.\left[ {32:\;\left( {6 – 5 + 15} \right)} \right]}\\
{ = 15.\left( {32:16} \right) = 15.2 = 30.}
\end{array}\)