tính 26 + 56
Giải thích
\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{26}\\{56}\end{array}} \\\,\,\,\,82\end{array}\) | \(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{62}\\{26}\end{array}} \\\,\,\,\,36\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{37}\\{13}\end{array}} \\\,\,\,\,50\end{array}\) | \(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{56}\\{17}\end{array}} \\\,\,\,\,39\end{array}\) |