If + means –, – means ×, × means ÷, and ÷ means

?% of 18% of 2600 = 234

?² = 37% of 800 – 14 × 18+ 5! - 20

The value of 11 × 11 + 11 ÷ 11 – 11 × 11 + 11 + 11 × 11 – 11 – 11 × 11 is:

What will come in the place of question mark (?) in the given expression?

(286 ÷ 13 + 83) ÷ 15 × 8 + 84 = 400% of ?

436 × 794 – 68210 =? + 85730

70 % of 640 + 75 % of 360 - 19 × 12 = ?

What will come in the place of question mark (?) in the given expression?

737 + 149 - ?²- 367 = 14 X 25

(6² - 5² ) % of 800 = 22 X √?

18² + 10 × 12 - ? = 312

560 ÷ 14 × 3 – 25 = ?