tính 447 + 381

20/30

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{447}\\{381}\end{array}} \\\,\,\,\,...\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{198}\\{190}\end{array}} \\\,\,\,\,...\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{340}\\{266}\end{array}} \\\,\,\,\,...\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{504}\\{489}\end{array}} \\\,\,\,\,...\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{278}\\{\,\,\,51}\end{array}} \\\,\,\,\,...\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{\,\,\,17}\\{578}\end{array}} \\\,\,\,\,...\end{array}\)

Nhập câu trả lời ở đây

0/3000 ký tự

Giải thích

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{447}\\{381}\end{array}} \\\,\,\,\,828\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{198}\\{190}\end{array}} \\\,\,\,\,388\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{340}\\{266}\end{array}} \\\,\,\,\,606\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{504}\\{489}\end{array}} \\\,\,\,\,993\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{278}\\{\,\,\,51}\end{array}} \\\,\,\,\,329\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{\,\,\,17}\\{578}\end{array}} \\\,\,\,\,595\end{array}\)