The practice of appending notes regarding contingent

28 × 3.5 +25 × 3.2 = ? - 62

116*2/3% of 18600 + 666*2/3% of 1290 = 457*1/7% of 1750 + 555*5/9% of 3150 + ?

3.2% of 500 × 2.4% of ? = 288

414 ÷ 23 × 38 – 154 + 264 = ?

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

{(16 × 25) ÷ 32} × 12 = ? – 200

[(4/3) + (5/6)] of 378 = ?

Find the simplified value of the following expression:

6² + 12² × 5 - {27² + 16² - 42²}

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

(55 × 8 + 28) × 10 = ?