tính 53 + 17
16/44
\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{53}\\{17}\end{array}} \\\,\,\,\,70\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{23}\\{38}\end{array}} \\\,\,\,\,61\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{66}\\{15}\end{array}} \\\,\,\,\,81\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{47}\\{19}\end{array}} \\\,\,\,\,66\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{25}\\{56}\end{array}} \\\,\,\,\,81\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{54}\\{17}\end{array}} \\\,\,\,\,71\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{55}\\{29}\end{array}} \\\,\,\,\,84\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{39}\\{45}\end{array}} \\\,\,\,\,84\end{array}\) |