转：1:3 × (8 ÷ 4 + 6) 2:3 × ((8 ÷ 4) + 6) 3:(3 × (8 - 6)) × 4 4:3 × (8 - 6) × 4 5:3 × ((8 - 6) × 4) 6:(3 × 4 - 8) × 6 7:((3 × 4) - 8) × 6 8:3 × (4 × (8 - 6)) 9:3 × 4 ×(8 - 6) 10:(3 ...