tính 70 – 59

\(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{70}\\{59}\end{array}} \\\,\,\,\,11\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{58}\\{13}\end{array}} \\\,\,\,\,71\end{array}\)

\(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{65}\\{36}\end{array}} \\\,\,\,\,29\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{25}\\{37}\end{array}} \\\,\,\,\,62\end{array}\)