\(\begin{array}{*{20}{c}}{ - \begin{array}{*{20}{c}}{543}\\{403}\end{array}}\\\hline{\,\,\,\,140}\end{array}\)                                 \(\begin{array}{*{20}{c}}{ - \begin{array}{*{20}{c}}{619}\\{207}\end{array}}\\\hline{\,\,\,\,412}\end{array}\)

\(\begin{array}{*{20}{c}}{ - \begin{array}{*{20}{c}}{758}\\{727}\end{array}}\\\hline{\,\,\,031}\end{array}\)                                 \(\begin{array}{*{20}{c}}{ - \begin{array}{*{20}{c}}{347}\\{120}\end{array}}\\\hline{\,\,\,227}\end{array}\)

1/ 7,36
2/ 19,9156 ( số thập phân vô hạn không tuần hoàn )
3/ 47
Tick đúng giúp mik nha

\(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{457}\\{452}\end{array}}\\\hline{\,\,\,907}\end{array}\)                               \(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{326}\\{\,\,29}\end{array}}\\\hline{\,\,\,355}\end{array}\)

\(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{762}\\{184}\end{array}}\\\hline{\,\,\,946}\end{array}\)                               \(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{546}\\{172}\end{array}}\\\hline{\,\,\,718}\end{array}\)