Условие:

Найди значения выражений 3600 : b и 3600 * b, если:
b = 48;
b = 24;
b = 15;
b = 10;
b = 5.

при b = 48:
3600 : b = 3600 : 48 = 75
$\begin{array}{cc}\begin{array}{l}\underset{¯}{\phantom{0}}3600\\ \phantom{0}\underset{¯}{336}\\ \phantom{0}\underset{¯}{\phantom{0}}240\\ \phantom{00}\underset{¯}{240}\\ \phantom{0000}0\end{array}& \begin{array}{l}\overline{)48}\\ \overline{\overline{)75}}\end{array}\end{array}$
3600 * b = 3600 * 48 = 172800
$\begin{array}{r}\times \underset{¯}{\begin{array}{r}36\\ 48\end{array}}\\ 288\\ 144\phantom{0}\\ \overline{1728}\end{array}$
 
при b = 24:
3600 : b = 3600 : 24 = 150
$\begin{array}{cc}\begin{array}{l}\underset{¯}{\phantom{0}}3600\\ \phantom{0}\underset{¯}{24}\\ \underset{¯}{\phantom{0}}120\\ \phantom{0}\underset{¯}{120}\\ \phantom{000}\underset{¯}{\phantom{0}}0\\ \phantom{0000}\underset{¯}{0}\\ \phantom{0000}0\end{array}& \begin{array}{l}\overline{)24}\\ \overline{\overline{)150}}\end{array}\end{array}$
3600 * b = 3600 * 24 = 86400
$\begin{array}{r}\times \underset{¯}{\begin{array}{r}36\\ 24\end{array}}\\ 144\\ 72\phantom{0}\\ \overline{864}\end{array}$
 
при b = 15:
3600 : b = 3600 : 15 = 240
$\begin{array}{cc}\begin{array}{l}\underset{¯}{\phantom{0}}3600\\ \phantom{0}\underset{¯}{30}\\ \phantom{0}\underset{¯}{\phantom{0}}60\\ \phantom{00}\underset{¯}{60}\\ \phantom{000}\underset{¯}{\phantom{0}}0\\ \phantom{0000}\underset{¯}{0}\\ \phantom{0000}0\end{array}& \begin{array}{l}\overline{)15}\\ \overline{\overline{)240}}\end{array}\end{array}$
3600 * b = 3600 * 15 = 54000
$\begin{array}{r}\times \underset{¯}{\begin{array}{r}36\\ 15\end{array}}\\ 180\\ 36\phantom{0}\\ \overline{540}\end{array}$
 
при b = 10:
3600 : b = 3600 : 10 = 360;
3600 * b = 3600 * 10 = 36000.
 
при b = 5:
3600 : b = 3600 : 5 = 720;
3600 * b = 3600 * 5 = 18000.