2, 2, 7, 10的24点答案：1:2 × (7 + 10 ÷ 2) =242:2 × (7 + (10 ÷ 2))=243:2 × (10 ÷ 2 + 7)=244:2 × ((10 ÷ 2) + 7)=245:(7 + 10 ÷ 2) × 2=246:(7 + (10 ÷ 2)) × 2=247:(10 ÷ 2 + 7) ×...