Rounding to Significant Figures

Question 1:

Round to 1 s.f. 9154

9000

Question 2:

Round to 2 s.f. 7.4025

7.4

Question 3:

Round to 2 s.f. 38505

39000

Question 4:

Round to 2 s.f. 0.020088

0.02

Question 5:

Round to 3 s.f. 0.0069741

0.00697

Question 6:

Round to 1 s.f. 8.3008

8