1. Vasya can get the number 100 using ten twos, parentheses, and arithmetic operation signs: $100=(22: 2-2: 2) \cdot(22: 2-2: 2)$. Improve his result: use fewer twos and get the number 100. (It is sufficient to provide one example).
Solution. For example: 1) $100=222: 2-22: 2, \quad$ 2) $100=(2 \cdot 2 \cdot 2+2) \cdot(2 \cdot 2 \cdot 2+2)$. There are $u$ other solutions.