tính 764 - 84
Giải thích
\(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{764}\\{\,\,\,84}\end{array}} \\\,\,\,\,680\end{array}\) | \(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{182}\\{173}\end{array}} \\\,\,\,\,\,\,\,\,\,\,9\end{array}\) | \(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{856}\\{\,\,\,66}\end{array}} \\\,\,\,\,790\end{array}\) | \(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{256}\\{128}\end{array}} \\\,\,\,\,128\end{array}\) | \(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{374}\\{192}\end{array}} \\\,\,\,\,182\end{array}\) | \(\begin{array}{l}\underline { - \begin{array}{*{20}{c}}{667}\\{\,\,\,48}\end{array}} \\\,\,\,\,619\end{array}\) |