1:(10 × (8 - 6)) + 42:10 × (8 - 6) + 43:(10 - 6) × 4 + 84:((10 - 6) × 4) + 85:8 + (10 - 6) × 46:8 + ((10 - 6) × 4)7:8 - (6 - 10) × 48:8 - ((6 - 10) × 4)9:(8 - 6) × 10 + 410:((8 - 6) × 10) + ...