Find the error intervals for the following truncated numbers

Question 1:

6100 (2 s.f.)
6100≤x<6200

Question 2:

3.80 (2 d.p.)
3.80≤x<3.81

Question 3:

880 (2 s.f.)
880≤x<890

Question 4:

0.24 (2 s.f.)
0.24≤x<0.25