Correct Answer: +, ×, –, ÷, =

Solution : Given:
36 * 14 * 17 * 396 * 18 * 252

Let's check each option –
First Option: +, –, ×, ÷, =
36 + 14 – 17 × 396 ÷ 18 = 252
L.H.S. = 36 + 14 – 17 × 396 ÷ 18
= 36 + 14 – 17 × 22
= 36 + 14 – 374
= –324
L.H.S. ≠ R.H.S.
Second Option: +, ×, –, =, ÷
36 + 14 × 17 – 396 = 18 ÷ 252
L.H.S. = 36 + 14 × 17 – 396 = 36 + 238 – 396 = –122
R.H.S. = 18 ÷ 252 = 0.0714
L.H.S. ≠ R.H.S.
Third Option: +, ×, –, ÷, =
36 + 14 × 17 – 396 ÷ 18 = 252
L.H.S. = 36 + 14 × 17 – 396 ÷ 18
= 36 + 14 × 17 – 22
= 36 + 238 – 22
= 252
L.H.S. = R.H.S.
Fourth Option: ×, +, –, ÷, =
36 × 14 + 17 – 396 ÷ 18 = 252
L.H.S. = 36 × 14 + 17 – 396 ÷ 18
= 36 × 14 + 17 –  22
= 504 + 17 –  22
= 499
L.H.S. ≠ R.H.S.

So, only the third option satisfies the equation. Hence, the third option is correct.