A piece of paper is folded and cut as shown below in

`sqrt(7744)`   - `sqrt(4761)` + `sqrt(8281)`  + `sqrt(5625)` + ? = 1856 

Simplify the following expressions and choose the correct option.

{[(13)² − (7)²] ÷ 12} × 4 = ?

60 % of 640 - 57 × 2 - 1520 / 38 = ?

Solve for the ?

672 ÷ 28 × 24 + 363 – 309 =?

What should come in place of the question mark (?) in the following question?

2 – [6 – {3 + (–4 + 5 + 1) × 8} + 12] = ?

1440 ÷ 12 + 540 ÷ √36 + ? = 180 * 3

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

40 of 30% of 220 = ? + 790