1:4 × 6 + 8 - 82:(4 × 6) + 8 - 83:(4 × 6 + 8) - 84:((4 × 6) + 8) - 85:4 × (6 + 8 - 8)6:4 × ((6 + 8) - 8)7:4 × (6 + (8 - 8))8:4 × 6 +(8 - 8)9:(4 × 6) + (8 - 8)10:4 × 6 - 8...