What should come in place of the question mark(?) in this question?
(450 ÷ 30)² - (120² = (?)²
3 1/4 + 2 1/2 + 6 1/6 = ?
5554 - 333 + 45 = ? + 2525
(8)² % of ? = 723 + 45
? % of 590 - 11.8 = 236
144 ÷ 8 ÷ ? = 9