TASK DEFINITION: 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.
PROBLEM: whose life he had insured for thirteen thousand pounds.

SOLUTION: whose life he had insured for 13,000.

PROBLEM: But it was proved that Watts had appropriated one cheque for fourteen hundred pounds,

SOLUTION: But it was proved that Watts had appropriated one cheque for 1400,

PROBLEM: The order coupon was signed, in handprinting, "A. Hidell, P.O. Box two nine one five, Dallas, Texas."

SOLUTION:
The order coupon was signed, in handprinting, "A. Hidell, P.O. Box 2915, Dallas, Texas."