Upper and Lower Bounds

Question 1:

Find the upper bound of 635 rounded to 3 s.f.

635.5

Question 2:

Find the upper bound of 860 rounded to 2 s.f.

865

Question 3:

Find the upper bound of 35.9 rounded to 1 d.p.

35.95

Question 4:

Find the upper bound of 935.4 rounded to 1 d.p.

935.45