Đặt tính rồi tính:

676 898 + 5 637	8 786 268 – 76 768
456 356 × 15	766 071 : 51

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}\begin{array}{l}676{\rm{ }}898\\{\rm{   }}\,5{\rm{ }}637\end{array}\end{array}} \\{\rm{  }}682{\rm{ }}535\end{array}\)

\[\begin{array}{l} - \begin{array}{*{20}{c}}{\underline \begin{array}{l}8{\rm{ }}786{\rm{ }}268\\{\rm{     }}76{\rm{ }}768\end{array} }\end{array}\\{\rm{  }}8{\rm{ }}709{\rm{ }}500\end{array}\]

\[\begin{array}{l} \times \begin{array}{*{20}{c}}{\underline \begin{array}{l}{\rm{   }}\,\,\,456{\rm{ }}356\\{\rm{             }}\,\,\,15\end{array} }\end{array}\\\underline \begin{array}{l}{\rm{  }}\,\,\,2{\rm{ }}281{\rm{ }}780\\{\rm{ }}\,\,\,{\rm{ 4 563 56}}\end{array} {\rm{ }}\\{\rm{  }}\,\,6{\rm{ }}845{\rm{ }}340\end{array}\]