Đặt tính rồi tính. (2 điểm) 245 467 + 17 980 347

245 467 + 17 980 347

\[\begin{array}{l} + \begin{array}{*{20}{c}}{\,\,\,\,\,\,\,245\,\,467}\\{\underline {17\,\,980\,\,347} }\end{array}\\\,\,\,\,18\,\,225\,\,814\end{array}\]

5 679 012 - 364 791

\[\begin{array}{l} - \begin{array}{*{20}{c}}{5\,\,679\,\,012}\\{\underline {\,\,\,\,\,364\,\,791} }\end{array}\\\,\,\,\,\,5\,\,314\,\,221\end{array}\]

249 123 × 39

\[\begin{array}{l} \times \begin{array}{*{20}{c}}{\,\,\,\,\,249\,\,123}\\{\underline {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,39} }\end{array}\\\,\,\,2\,\,242\,\,107\\\,\,\,\underline {7\,\,473\,\,69\,\,\,\,} \\\,\,\,9\,\,715\,\,797\end{array}\]

457 987 : 24