The task is to read a passage and convert numbers in their text forms into digit forms. The text numbers can be used to represent Quantity, Dates and Time, Addresses or Positions.

looked at his watch and said "twelve:thirty" to the driver, Special Agent Greer.
looked at his watch and said "12:30" to the driver, Special Agent Greer.

Neild gives a list of the various items charged upon a debt of ten pounds, which included instructions to sue,
Neild gives a list of the various items charged upon a debt of £10, which included instructions to sue,

one hundred seventy dollars in a wallet in his wife's room in Irving.

$170 in a wallet in his wife's room in Irving.