Find the error intervals for the following truncated numbers

Question 1:

0.3 (1 s.f.)
0.3≤x<0.4

Question 2:

1.36 (2 d.p.)
1.36≤x<1.37

Question 3:

0.03 (1 s.f.)
0.03≤x<0.04

Question 4:

4.33 (2 d.p.)
4.33≤x<4.34