1:(3 + 13) ÷ 4 × 6 2:((3 + 13) ÷ 4) × 6 3:(3 + 13) ÷ (4 ÷ 6) 4:(3 + 13) × 6 ÷ 4 5:((3 + 13) × 6) ÷ 4 6:(3 + 13) × (6 ÷ 4) 7:(13 + 3) ÷ 4 × 6 8:((13 + 3) ÷ 4) × 6 9:(13 + 3) ÷ (4 ÷ 6)...