Đặt tính rồi tính. (2 điểm) 247 897 654 + 124 301 247

247 897 654 + 124 301 247

\(\begin{array}{l} + \begin{array}{*{20}{c}}{247\,\,897\,\,654}\\{\underline {124\,\,301\,\,247} }\end{array}\\\,\,\,\,\,372\,\,198\,\,901\end{array}\)

951 345 012 - 98 671 302

\(\begin{array}{l} - \begin{array}{*{20}{c}}{\,951\,\,345\,\,012}\\{\underline {\,\,\,\,98\,\,671\,\,302} }\end{array}\\\,\,\,\,852\,\,673\,\,710\end{array}\)

485 102 × 23

\(\begin{array}{l} \times \begin{array}{*{20}{c}}{\,\,\,\,\,\,\,\,\,485\,\,102}\\{\underline {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,23} }\end{array}\\\,\,\,\,\,\,\,1\,\,455\,\,306\\\,\,\,\,\,\underline {\,9\,\,702\,\,04\,\,\,\,} \\\,\,\,\,\,11\,\,157\,\,346\end{array}\)

975 237 : 56

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