tính 4 + 27
8/44
\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{\,\,\,4}\\{27}\end{array}} \\\,\,\,\,31\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{\,\,\,9}\\{79}\end{array}} \\\,\,\,\,88\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{\,\,\,7}\\{36}\end{array}} \\\,\,\,\,43\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{\,\,\,6}\\{29}\end{array}} \\\,\,\,\,35\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{\,\,\,8}\\{55}\end{array}} \\\,\,\,\,63\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{\,\,\,3}\\{68}\end{array}} \\\,\,\,\,71\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{\,\,\,8}\\{78}\end{array}} \\\,\,\,\,86\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{\,\,\,8}\\{89}\end{array}} \\\,\,\,\,97\end{array}\) |