tính 18 + 19
23/44
\[\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{1\,\,8}\\{1\,\,9}\end{array}} \\\,\,\,\,37\end{array}\] | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{66}\\{28}\end{array}} \\\,\,\,\,94\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{12}\\{49}\end{array}} \\\,\,\,\,61\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{18}\\{23}\end{array}} \\\,\,\,\,41\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{69}\\{28}\end{array}} \\\,\,\,\,97\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{17}\\{34}\end{array}} \\\,\,\,\,51\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{47}\\{15}\end{array}} \\\,\,\,\,62\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{26}\\{19}\end{array}} \\\,\,\,\,45\end{array}\) |