1 5 5 5 3 7 9 13 2 6 9 9 5 5 10 13 2 4 10 10

题目

1 5 5 5 3 7 9 13 2 6 9 9 5 5 10 13 2 4 10 10
5 5 7 11 2 5 5 10 3 3 7 7 4 4 7 7
只能求一组也没关系,

答案

1555:5 × (5 - 1 ÷ 5)2:5 × (5 - (1 ÷ 5))3:(5 - 1 ÷ 5) × 54:(5 - (1 ÷ 5)) × 537913:7 × 9 - 3 × 132:(7 × 9) - 3 × 133:7 × 9 -(3 × 13)4:(7 × 9) - (3 × 13)5:7 × 9 - 13 × 36:(7 × 9) - 13 ...