Задание. Выполни вычисления столбиком: 183 * 4, 177 * 4, 149 * 5, 285 * 3, 678 * 3, 153 * 5, 168 * 5, 231 * 4, 234 * 4, 2385 * 29, 5671 * 783.

Вот решения примеров умножения в столбик: 1. $183 \cdot 4 = 732$ $\begin{array}{r} 183 \\ \times \phantom{00}4 \\ \hline 732 \end{array}$ 2. $177 \cdot 4 = 708$ $\begin{array}{r} 177 \\ \times \phantom{00}4 \\ \hline 708 \end{array}$ 3. $149 \cdot 5 = 745$ $\begin{array}{r} 149 \\ \times \phantom{00}5 \\ \hline 745 \end{array}$ 4. $285 \cdot 3 = 855$ $\begin{array}{r} 285 \\ \times \phantom{00}3 \\ \hline 855 \end{array}$ 5. $678 \cdot 3 = 2034$ $\begin{array}{r} 678 \\ \times \phantom{00}3 \\ \hline 2034 \end{array}$ 6. $153 \cdot 5 = 765$ $\begin{array}{r} 153 \\ \times \phantom{00}5 \\ \hline 765 \end{array}$ 7. $168 \cdot 5 = 840$ $\begin{array}{r} 168 \\ \times \phantom{00}5 \\ \hline 840 \end{array}$ 8. $231 \cdot 4 = 924$ $\begin{array}{r} 231 \\ \times \phantom{00}4 \\ \hline 924 \end{array}$ 9. $234 \cdot 4 = 936$ $\begin{array}{r} 234 \\ \times \phantom{00}4 \\ \hline 936 \end{array}$ 10. $2385 \cdot 29 = 69165$ $\begin{array}{r} 2385 \\ \times \phantom{000}29 \\ \hline 21465 \\ 4770 \phantom{0} \\ \hline 69165 \end{array}$ 11. $5671 \cdot 783 = 4440393$ $\begin{array}{r} 5671 \\ \times \phantom{00}783 \\ \hline 17013 \\ 45368 \phantom{0} \\ 39697 \phantom{00} \\ \hline 4440393 \end{array}$