Detailed Instructions: You are given a math word problem and you are supposed to apply a single mathematical operator like addition, subtraction, multiplication, or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
Problem:ted and fred measured their height . fred 's height is 98 inches . ted is 39 inches tall . what 's the difference between ted 's height and fred 's height ?
Solution:
59