Estimate These Calculations

Question 1:

9.52×0.0715

0.7

Question 2:

0.686×4.64

3.5

Question 3:

82.69 0.24

400

Question 4:

5.413 0.11

50

Question 5:

4.68×24.3 0.83

125

Question 6:

1.36×40.3 0.43

100