1:(10 ÷ (8 - 3)) × 122:10 ÷ (8 - 3) × 123:10 ÷ ((8 - 3) ÷ 12)4:10 × (12 ÷ (8 - 3))5:10 × 12 ÷(8 - 3)6:(10 × 12) ÷ (8 - 3)7:(12 ÷ (8 - 3)) × 108:12 ÷ (8 - 3) × 109:12 ÷ ((8 - 3) ÷ 10)...