\[\boxed{\mathbf{517\ (517)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ (2 + 2)\ :(2 + 2) = 1\]
\[2)\ 2\ :2 + 2\ :2 = 2\]
\[3)\ (2 + 2 + 2)\ :2 = 3\]
\[4)\ 2 + 2 + 2 - 2 = 4\]
\[5)\ 2 + 2 + 2\ :2 = 5\]
\[6)\ (2\ :2 + 2) \cdot 2 = 6\]
\[7)\ 2 + 2 + 2 + 2 = 8\]
\[8)\ 2 \cdot 2 \cdot 2 + 2 = 10\]