Đặt tính rồi tính: 54 627 + 25 538

\[\begin{array}{l} + \begin{array}{*{20}{c}}{54\,\,627}\\{\underline {25\,\,538} }\end{array}\\\,\,\,\,\,80\,\,165\end{array}\]

\[\begin{array}{l} - \begin{array}{*{20}{c}}{67\,\,852}\\{\underline {48\,\,216} }\end{array}\\\,\,\,\,\,19\,\,636\end{array}\]

\[\begin{array}{l} + \begin{array}{*{20}{c}}{293\,\,175}\\{\underline {425\,\,274} }\end{array}\\\,\,\,\,718\,\,449\end{array}\]

\[\begin{array}{l} - \begin{array}{*{20}{c}}{728\,\,647}\\{\underline {354\,\,718} }\end{array}\\\,\,\,\,373\,\,929\end{array}\]