Finding possible values of rounded numbers

The number -1.9251 was rounded to 4 decimal places. Write an interval in the form a ≤ x < b showing where the original value could have been.

The number 1.86 was rounded to 2 decimal places. Write an interval in the form a ≤ x < b showing where the original value could have been.

The number -0.4 was rounded to 1 decimal places. Write an interval in the form a ≤ x < b showing where the original value could have been.

The number -2.5 was rounded to 1 decimal places. Write an interval in the form a ≤ x < b showing where the original value could have been.

The number 0.5 was rounded to 1 decimal places. Write an interval in the form a ≤ x < b showing where the original value could have been.

The number 2.1 was rounded to 1 decimal places. Write an interval in the form a ≤ x < b showing where the original value could have been.

The number -0.24 was rounded to 2 decimal places. Write an interval in the form a ≤ x < b showing where the original value could have been.

The number -0.637 was rounded to 3 decimal places. Write an interval in the form a ≤ x < b showing where the original value could have been.

The number -0.9 was rounded to 1 decimal places. Write an interval in the form a ≤ x < b showing where the original value could have been.

The number 1.378 was rounded to 3 decimal places. Write an interval in the form a ≤ x < b showing where the original value could have been.