\[\boxed{\text{176\ (176).\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[1)\ 22 + 2 = 24\]
\[2)\ 99\ :9 + 9 = 20\]
\[(99 - 9)\ :9 = 10\]
\[(99 - 9) \cdot 9 = 810\]
\[999 + 9 = 1008\]
\[3)\ 9\ :9 + 999 = 1000\]
\[(55 - 5) \cdot (5 \cdot 5 - 5) = 50 \cdot 20 =\]
\[= 1000\]