Đặt tính rồi tính: 607,3 - 98,48 ; 15,78 + 76,24 ; 864 : 2,4

* Hướng dẫn giải

$\begin{array}{l}607,3\\ \underset{¯}{-98,48}\\ 508,82\end{array}$ $607,3 – 98,48 = 508,82$

$\begin{array}{l}15,78\\ +\underset{¯}{76,24}\\ 92,02\end{array} 15,78 + 76,24 = 92,02$

$\begin{array}{l}0,365\\ \times \underset{¯}{26}\\ 2190\\ \underset{¯}{0730}\\ 9,490\end{array} 0,365 x 26 = 9,490$

$\begin{array}{l}8640\left|\begin{array}{l}\underset{¯}{2,4}\\ 360\\ \end{array}\right.\\ 144\\ 000\end{array} 8640 : 2,4 = 360$