1:(13 + 3) × 2 - 82:((13 + 3) × 2) - 83:(3 + 13) × 2 - 84:((3 + 13) × 2) - 85:(2 × (13 + 3)) - 86:2 × (13 + 3) - 87:(2 × (3 + 13)) - 88:2 × (3 + 13) - 8