\[\boxed{\mathbf{Страница\ 50.\ }\mathbf{Еуроки\ - \ ДЗ\ без\ мороки}}\]
\[\boxed{\mathbf{12.\ }}\]
\[\textbf{а)}\ x \cdot 8 = 560\ \ \ \ \ \ \ \]
\[x = 70.\]
\[\textbf{б)}\ 96\ :x = 8\ \ \ \ \ \ \ \ \ \ \ \]
\[x = 12.\]
\[\textbf{в)}\ x\ :60 = 14\ \ \ \ \ \ \ \ \]
\[x = 840.\]
\[\textbf{г)}\ 19 \cdot x = 76\ \ \ \ \ \ \ \]
\[x = 4.\]
\[\textbf{д)}\ 105\ :x = 35\ \ \ \]
\[x = 3.\]
\[\textbf{е)}\ x\ :15 = 80\ \ \ \ \ \ \]
\[x = 1200.\]
\[\mathbf{13.\ Деление\ с\ остатком}\]
\[\boxed{\mathbf{Страница\ 50.\ }\mathbf{Еуроки\ - \ ДЗ\ без\ мороки}}\]
\[\boxed{\mathbf{1.\ }}\]
\[\textbf{а)}\ 17\ :4 = 4\ (ост.\ 1)\]
\[\textbf{б)}\ 28\ :6 = 4\ (ост.\ 4)\]
\[\textbf{в)}\ 39\ :8 = 4\ (ост.\ 7)\]
\[\textbf{г)}\ 115\ :7 = 16\ (ост.\ 3)\]
\[\textbf{д)}\ 326\ :5 = 65\ (ост.\ 1)\]
\[\textbf{е)}\ 531\ :10 = 53\ (ост.\ 1)\]
\[\boxed{\mathbf{2.\ }}\]
\[\mathbf{Остатки\ при\ делении\ }на\ 8:\]
\[0 \Longrightarrow \ да\]
\[3 \Longrightarrow \ да\]
\[7 \Longrightarrow \ да\]
\[10 \Longrightarrow \ нет\]
\[8 \Longrightarrow \ нет\]
\[\boxed{\mathbf{3.\ }}\]
\[\mathbf{Остатки\ при\ делении:}\]
\[на\ \ 9 \Longrightarrow \ \ \ 8,\ 7,\ 6,\ 5,\ 4,\ 3,\ 2,\ 1,\ 0\]
\[на\ 3 \Longrightarrow \ \ \ \ 2,\ 1,\ 0\]
\[на\ 2 \Longrightarrow \ \ \ \ 1,\ 0.\]