tính 285 + 562
Giải thích
\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{285}\\{562}\end{array}} \\\,\,\,\,847\end{array}\) | \[\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{435}\\{458}\end{array}} \\\,\,\,\,\,893\end{array}\] | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{189}\\{680}\end{array}} \\\,\,\,\,869\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{812}\\{118}\end{array}} \\\,\,\,\,930\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{726}\\{236}\end{array}} \\\,\,\,\,962\end{array}\) | \(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{872}\\{\,\,\,33}\end{array}} \\\,\,\,\,905\end{array}\) |