(44,66 : 2,2 − 5,74) * 2,5 + 3,6 = (20,3 − 5,74) * 2,5 + 3,6 = 14,56 * 2,5 + 3,6 = 36,4 + 3,6 = 40
1)
$\begin{array}{cc}\begin{array}{l}\underset{¯}{\phantom{0}}\mathrm{446,6}\\ \phantom{0}\underset{¯}{44}\\ \phantom{00}\underset{¯}{\phantom{0}}6\\ \phantom{000}\underset{¯}{0}\\ \phantom{00}\underset{¯}{\phantom{0}}66\\ \phantom{000}\underset{¯}{66}\\ \phantom{0000}0\end{array}& \begin{array}{l}\overline{)22}\\ \overline{\overline{)\mathrm{20,3}}}\end{array}\end{array}$
2)

3)

4)

(5,37 : 1,5 + 0,62) : 0,56 − 0,39 = (3,58 + 0,62) : 0,56 − 0,39 = 4,2 : 0,56 − 0,39 = 7,5 − 0,39 = 7,11
1)
$\begin{array}{cc}\begin{array}{l}\underset{¯}{\phantom{0}}\mathrm{53,7}\\ \phantom{0}\underset{¯}{45}\\ \phantom{0}\underset{¯}{\phantom{0}}87\\ \phantom{00}\underset{¯}{75}\\ \phantom{0}\underset{¯}{\phantom{0}}120\\ \phantom{00}\underset{¯}{120}\\ \phantom{0000}0\end{array}& \begin{array}{l}\overline{)15}\\ \overline{\overline{)\mathrm{3,58}}}\end{array}\end{array}$
2)

3)
$\begin{array}{cc}\begin{array}{l}\underset{¯}{\phantom{0}}420\\ \phantom{0}\underset{¯}{392}\\ \phantom{0}\underset{¯}{\phantom{0}}280\\ \phantom{00}\underset{¯}{280}\\ \phantom{0000}0\end{array}& \begin{array}{l}\overline{)56}\\ \overline{\overline{)\mathrm{7,5}}}\end{array}\end{array}$
4)