Estimate These Calculations

Question 1:

0.0785×6.55

0.56

Question 2:

0.0856×0.0079

0.00072

Question 3:

30.97 0.48

60

Question 4:

0.3724 0.37

1

Question 5:

20.8×9.2 0.44

450

Question 6:

12×5.64 0.21

300