随着电脑的推广应用,各种电脑游戏纷纷应运而生.如今,开放题很热门,成了数学教改中的“活跃分子”.这里有一个叫做“争取100分”的智力游戏,它要求你写出一个20位长的天文数字,它必须由两个1、两个2、两个3……两个9和两个0组成,而且要符合数字的书写惯例,即0不可以放在最前面,只能放在中间或最后. With the popularization and application of computers, various computer games have emerged. Today, the open question is very popular and has become an “activist” in mathematics education reform. There is an intellectual game called “Get 100 points,” which requires you to Write a 20-bit astronomical number, it must be composed of two 1, 2, 2, 3, ..., 9 and 0, and to comply with the number of writing conventions, that 0 can not be placed in the most In front, only in the middle or at the end.