tính 35 – 28

\(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{35}\\{28}\end{array}} \\\,\,\,\,\,\,7\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{58}\\{24}\end{array}} \\\,\,\,\,82\end{array}\)

\(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{82}\\{29}\end{array}} \\\,\,\,\,53\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{16}\\{34}\end{array}} \\\,\,\,\,50\end{array}\)