\[\boxed{\mathbf{Страница}\mathbf{\ 26}\mathbf{.}\mathbf{\ }\mathbf{Еуроки}\mathbf{\ - \ }\mathbf{ДЗ}\mathbf{\ }\mathbf{без}\mathbf{\ }\mathbf{мороки}}\]
\[\boxed{\mathbf{1.}}\]
\[1)\ 56\ :(4 \cdot 7) = 56\ :28 = 2\]
\[56\ :(4 \cdot 7) = (56\ :4)\ :7 =\]
\[= 14\ :7 = 2\]
\[56\ :(4 \cdot 7) = (56\ :7)\ :4 =\]
\[= 8\ :4 = 2\]
\[2)\ \ 420\ :(10 \cdot 7) =\]
\[= (420\ :10)\ :7 = 42\ :7 = 6\]
\[5400\ :(100 \cdot 3) =\]
\[= (5400\ :100)\ :3 = 54\ :3 = 18\]
\[7200\ :(9 \cdot 4) = (7200\ :9)\ :4 =\]
\[= 800\ :4 = 200\]
\[\boxed{\mathbf{2.}}\]
\[1)\ 160 - 64 = 96\ (кг) - вишни\ \]
\[разложили\ в\ корзины.\]
\[2)\ 96\ :12 =\]
\[= 8\ (корзин) - заняли\ вишней.\]
\[Ответ:8\ корзин.\]
\[\boxed{\mathbf{3.}}\]
\[320\ :16 = 320\ :(2 \cdot 8) =\]
\[= (320\ :8)\ :2 = 40\ :2 = 20\]
\[750\ :50 = 750\ :(5 \cdot 10) =\]
\[= (750\ :10)\ :5 = 75\ :5 = 15\]
\[5400\ :900 = 5400\ :(9 \cdot 100) =\]
\[= (5400\ :100)\ :9 = 54\ :9 = 6\]