tính 59 + 23
Giải thích
\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{59}\\{23}\end{array}} \\\,\,\,\,82\end{array}\) | \(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{73}\\{36}\end{array}} \\\,\,\,\,37\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{29}\\{18}\end{array}} \\\,\,\,\,47\end{array}\) | \(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{80}\\{21}\end{array}} \\\,\,\,\,59\end{array}\) |