tính 8 + 27
12/44
\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{\,\,\,8}\\{27}\end{array}} \\\,\,\,\,35\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{\,\,\,9}\\{59}\end{array}} \\\,\,\,\,68\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{\,\,\,7}\\{54}\end{array}} \\\,\,\,\,61\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{\,\,\,9}\\{42}\end{array}} \\\,\,\,\,51\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{\,\,\,8}\\{39}\end{array}} \\\,\,\,\,47\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{\,\,\,7}\\{87}\end{array}} \\\,\,\,\,94\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{\,\,\,8}\\{33}\end{array}} \\\,\,\,\,41\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{\,\,\,\,3}\\{28}\end{array}} \\\,\,\,\,\,31\end{array}\) |