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: (two) took paper and tape from the wrapping bench of the Depository and fashioned a bag large enough to carry the disassembled rifle;

SOLUTION: (2) took paper and tape from the wrapping bench of the Depository and fashioned a bag large enough to carry the disassembled rifle;

PROBLEM: In eighteen fifty three a second case of gigantic fraud alarmed and scandalized the financial world.

SOLUTION:
In 1853 a second case of gigantic fraud alarmed and scandalized the financial world.