24点（一题多解）6,8,9,10

1:6 - (8 - 10) × 92:6 - ((8 - 10) × 9)3:6 - (9 × (8 - 10))4:6 - 9 ×(8 - 10)5:6 + (9 × (10 - 8))6:6 + 9 ×(10 - 8)7:6 + (10 - 8) × 98:6 + ((10 - 8) × 9)9:(9 × (10 - 8)) + 610:9 × (10 - 8) + 61...