tính 29 + 56
\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{29}\\{56}\end{array}} \\\,\,\,\,85\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{68}\\{16}\end{array}} \\\,\,\,\,84\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{77}\\{17}\end{array}} \\\,\,\,\,94\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{25}\\{48}\end{array}} \\\,\,\,\,73\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{38}\\{22}\end{array}} \\\,\,\,\,60\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{19}\\{68}\end{array}} \\\,\,\,\,87\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{18}\\{25}\end{array}} \\\,\,\,\,43\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{37}\\{18}\end{array}} \\\,\,\,\,55\end{array}\) |
