(2846 + 1158) : 28 + 25 * 36 = 4004 : 28 + 25 * 36 = 143 + 900 = 1043
1) $\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}2846\\ 1158\end{array}}\\ \begin{array}{r}4004\end{array}\end{array}$;
2) $\begin{array}{cc}\begin{array}{l}\underset{¯}{\phantom{0}}4004\\ \phantom{0}\underset{¯}{28}\\ \underset{¯}{\phantom{0}}120\\ \phantom{0}\underset{¯}{112}\\ \phantom{00}\underset{¯}{\phantom{0}}84\\ \phantom{000}\underset{¯}{84}\\ \phantom{0000}0\end{array}& \begin{array}{l}\overline{)28}\\ \overline{\overline{)143}}\end{array}\end{array}$;
3) $\begin{array}{r}\times \underset{¯}{\begin{array}{r}25\\ 36\end{array}}\\ 150\\ 75\phantom{0}\\ \overline{900}\end{array}$;
4) 143 + 900 = 1043.
 
3 т 8 ц * 3 − 4 ц 90 кг = 11 т 4 ц − 4 ц 90 кг = 10 т 9 ц 10 кг