Practice Problems for Significant Figures

 

1) 3.461728 + 14.91 + 0.980001 + 5.2631

2) 23.1 + 4.77 + 125.39 + 3.581

3) 22.101 - 0.9307

4) 0.04216 - 0.0004134

5) 564,321 - 264,321

6) (3.4617 x 107) ÷ (5.61 x 10¯4)

7) [(9.714 x 105) (2.1482 x 10¯9)] ÷ [(4.1212) (3.7792 x 10¯5)]. Watch your order of operations on this problem.

8) (4.7620 x 10¯15) ÷ [(3.8529 x 1012) (2.813 x 10¯7) (9.50)]

9) [(561.0) (34,908) (23.0)] ÷ [(21.888) (75.2) (120.00)]

 

 

ANSWERS:

  1. 24.61
  2. 156.8
  3. 21.170
  4. 0.04175
  5. 3.00000 x 105
  6. 6.17 x 1010
  7. 1.340 x 101
  8. 4.62 x 10¯22
  9. 2.28 x 103
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