Quantitative Aptitude

Directions (1-5):  What approximate value should come in place of the question mark (?) in the following questions? (You are not expected to calculate the exact value.)
1. √9026×(5.96)^2=?                                                (4)

  1. (1) 3050
  2. (2) 3780
  3. (3) 2340
  4. (4) 3420
  5. (5) 3950
2. 4734.96-3454.03-1612.86= ?-1611.43               (1)

  1. (1) 1280
  2. (2) 2290
  3. (3) 1020
  4. (4) 18150
  5. (5) 1040
3. 2, 3, 8, ?, 112, 565 323/55×971/251×56/61= ?  (5)

  1. (1) 27
  2. (2) 9
  3. (3) 4
  4. (4) 16
  5. (5) 21
4. 133.008×2.97-111.87+74.13= ?                            (3)

  1. (1) 311
  2. (2) 234
  3. (3) 360
  4. (4) 290
  5. (5) 399
5. 32.1×2799÷549+120= ?                                       (2)

  1. (1) 220
  2. (2) 280
  3. (3) 40909
  4. (4) 505
  5. (5) 190