算24点练习题可打印附答案

题目：1 1 1 8 :1 1 2 6 :1 1 2 7 :1 1 2 8 :1 1 2 9 :1 1 2 10 :1 1 3 4 :1 1 3 5 :1 1 3 6 :1 1 3 7 :1 1 3