You are given a math word problem and you are supposed to apply a single mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report final the numerical answer.

[EX Q]: If Teresa jogged 25 kilometers at 5 kilometers per hour , how long was Teresa jogging ?
[EX A]: 5

[EX Q]: An oil pipe in the sea broke . Before engineers started to fix the pipe , 2475 gallons of oil leaked into the water . A total of 6206 gallons of oil leaked before the pipe was fixed . How many gallons of oil leaked while the engineers were fixing the pipe ?
[EX A]: 3731

[EX Q]: Ellen had 380 legos , but Ellen lost 57 of them . How many legos does Ellen have now ?
[EX A]:
323