\[\boxed{\mathbf{Страница}\mathbf{\ \ 30}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[\boxed{\mathbf{66}\mathbf{.}}\]
\[\boxed{\mathbf{67}\mathbf{.}}\]
\[1)\ y - 15 = 35\]
\[x + 15 = 35\]
\[y > x\]
\[2)\ y\ :6 = 3\]
\[6\ :x = 3\]
\[y > x\]
\[3)\ x + 32 = 46\]
\[y + 35 = 46\]
\[y < x\]
\[4)\ y - 12 = 31\]
\[x - 14 = 31\]
\[y < x\]
\[\boxed{\mathbf{68}\mathbf{.}\mathbf{\ }}\]
\[32\ :8\ :2 \cdot 6\ :3 = 12\ :3 = 4\]
\[16\ :8 \cdot 7 + 66 = 14 + 66 = 80\]
\[30\ :5 + 3 \cdot 9 = 6 + 27 = 33\]
\[24\ :4 + 5 \cdot 2 = 6 + 10 = 16\]
\[28\ :7 \cdot 4\ :8 \cdot 3 = 2 \cdot 3 = 6\]
\[40\ :4 + 36\ :4 = 10 + 9 = 19\]
\[12\ :4 + 24\ :3 = 3 + 8 = 11\]
\[24\ :4 \cdot 2\ :6 = 12\ :6 = 2\]
\[\boxed{\mathbf{69}\mathbf{.}\mathbf{\ }}\]
\[7\ дм\ 4\ см > 4\ дм\ 7\ см\]
\[1\ м\ 6\ см > 1\ дм\ 6\ см\]
\[78\ мм > 7\ см\ 7\ мм = 77\ мм\]
\[56\ дм < 65\ дм\]
\[8\ м = 80\ дм\]
\[33\ мм < 4\ см = 40\ мм\]