Estimate These Calculations

Question 1:

70.6×0.899

63

Question 2:

0.0734×2.4

0.14

Question 3:

2.782 0.11

30

Question 4:

0.6709 0.14

7

Question 5:

2.28×88.9 0.83

225

Question 6:

49.6×9.9 0.23

2500