如题所述
5, 5, 5, 1的24点答案:1: 5 × (5 - 1 ÷ 5) =242: 5 × (5 - (1 ÷ 5))=24
3: (5 - 1 ÷ 5) × 5=24
4: (5 - (1 ÷ 5)) × 5=24