Find the error intervals for the following rounded numbers

Question 1:

0.0006 (1 s.f.)

0.00055≤x<0.00065

Question 2:

220 (3 s.f.)

219.5≤x<220.5

Question 3:

0.004 (1 s.f.)

0.0035≤x<0.0045

Question 4:

4050 (3 s.f.)

4045≤x<4055