1:(2 × (5 + 8)) - 22:2 × (5 + 8) - 23:(2 × (8 + 5)) - 24:2 × (8 + 5) - 25:(5 + 8) × 2 - 26:((5 + 8) × 2) - 27:(8 + 5) × 2 - 28:((8 + 5) × 2) - 2