Upper and Lower Bounds

Question 1:

Find the upper bound of 7.65 rounded to 2 d.p.

7.655

Question 2:

Find the lower bound of 0.698 rounded to 3 d.p.

0.6975

Question 3:

Find the lower bound of 0.2 rounded to 2 d.p.

0.195

Question 4:

Find the lower bound of 60 rounded to 1 s.f.

55