Upper and Lower Bounds

Question 1:

Find the lower bound of 220 rounded to 2 s.f.

215

Question 2:

Find the lower bound of 1300 rounded to 2 s.f.

1250

Question 3:

Find the lower bound of 86 rounded to 2 s.f.

85.5

Question 4:

Find the upper bound of 0.705 rounded to 3 d.p.

0.7055