tính 619 + 178
Giải thích
\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{619}\\{178}\end{array}} \\\,\,\,\,797\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{392}\\{163}\end{array}} \\\,\,\,\,555\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{690}\\{\,\,\,86}\end{array}} \\\,\,\,\,776\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{532}\\{185}\end{array}} \\\,\,\,\,717\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{199}\\{520}\end{array}} \\\,\,\,\,719\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{726}\\{182}\end{array}} \\\,\,\,\,908\end{array}\) |