Tính:

Trả lời

$\begin{array}{l}\times \underset{¯}{\begin{array}{l}36\\ 12\end{array}}\\ 72\\ \underset{¯}{36}\\ 432\end{array}$

$\begin{array}{l}\times \underset{¯}{\begin{array}{l}24\\ 49\end{array}}\\ 216\\ \underset{¯}{96}\\ 1176\end{array}$

$\begin{array}{l}\times \underset{¯}{\begin{array}{l}48\\ 61\end{array}}\\ 48\\ \underset{¯}{288}\\ 2928\end{array}$

$\begin{array}{l}\times \underset{¯}{\begin{array}{l}75\\ 43\end{array}}\\ 225\\ \underset{¯}{300}\\ 3225\end{array}$