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: on the turn at the intersection of Houston and Elm Streets and then proceeded at a rate of twelve to fifteen miles per hour

SOLUTION: on the turn at the intersection of Houston and Elm Streets and then proceeded at a rate of 12 to 15 miles per hour

PROBLEM: On the twenty seventh April, in the following year,

SOLUTION: On the 27th April, in the following year,

PROBLEM: The two men left work at four:forty p.m. and drove to Irving.

SOLUTION:
The two men left work at 4:40 p.m. and drove to Irving.