Estimate These Calculations

Question 1:

0.773×3.58

3.2

Question 2:

4.17×2.53

12

Question 3:

0.8925 0.81

1.125

Question 4:

3.019 0.46

6

Question 5:

1.06×9.03 0.18

45

Question 6:

8.49×9.03 0.49

144