Radio Shack TRS-80 PC-3 Owner's Manual page 32

On the other hand, suppose that you had entered this calculation:
Input Display
600.
The results seem much too large. If you only have 300 people attending the meeting, how could you have 600 "small groups'?
Recall your entry using the
C8 .
Input
Display
~000/5
The flashing cursor is now positioned over the first character in the display. To correct this entry, eliminate one of the zeros.
Use the
C8
to move the cursor to the first zero (or any zero). When deleting a character, position the cursor "on top of" the
character to be deleted.
Input
Now the DELete key to get rid of one of the zeros.
Display
30