Which of the following is correct?
1) 8× 4 – 18÷ 6 + 2 = 34 8× 4 – 3 + 2 = 34 32 – 3 + 2 = 34 31≠ 34 2) 8 × 4 + 18 ÷ 6 + 2 = 28 8 × 4 + 3 + 2 = 28 32 + 3 + 2 = 28 37≠ 28 3) 8 ÷ 4 × 18 - 6 + 2 = 35 2 × 18 - 6 + 2 = 35 36 - 4 = 35 32≠ 35 4) 8 ÷ 4 × 18 + 6 – 2 = 40 2 × 18 + 6 – 2 = 40 36 + 6 – 2 = 40 40 = 40