tính 185 + 305

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{185}\\{305}\end{array}} \\\,\,\,\,490\end{array}\)

\(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{728}\\{361}\end{array}} \\\,\,\,\,367\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{116}\\{114}\end{array}} \\\,\,\,\,230\end{array}\)

\(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{676}\\{\,\,\,82}\end{array}} \\\,\,\,\,594\end{array}\)