Estimate These Calculations

Question 1:

15.2×0.514

10

Question 2:

72.9×0.0726

4.9

Question 3:

0.5423 0.52

1

Question 4:

58.3 0.44

150

Question 5:

64.6×5.7 0.38

900

Question 6:

6.19×98.3 0.79

750