tính 65 – 7

\(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{65}\\{\,\,\,7}\end{array}} \\\,\,\,\,58\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{26}\\{44}\end{array}} \\\,\,\,\,70\end{array}\)

\(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{82}\\{67}\end{array}} \\\,\,\,\,15\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{27}\\{13}\end{array}} \\\,\,\,\,40\end{array}\)