Click Home tabAnnotation panelDimension Style.Enter dimstyle at the Command prompt.
In the Dimension Style Manager, select the style you want to change. Click Modify.
In the Modify Dimension Style dialog box, Tolerances tab, under Tolerance Format, select the alignment from the Vertical Position list.
To suppress zeros in primary or alternate units, under Zero Suppression, select Leading to suppress leading zeros. Select Trailing to suppress trailing zeros.
Annotation panel
Enter dimstyle at the Command prompt.