Given a math word problem, answer the following question. You might need to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the question and then only report the final numerical answer.

[EX Q]: after buying a dress he went to a gardening store and bought his mom some ornamental plants . if the plants originally cost $ 467 and he was able to get a $ 399 discount how much did he actually spend on buying the plants ?
[EX A]: 68

[EX Q]: a museum had 14 paintings . after they got rid of some they had 4 left . what 's the difference between the number of paintings before they got rid of and the left ?
[EX A]: 10

[EX Q]: their next opponent was the green team . if their final score is 68 points and they led by 29 points what is green team 's final score ?
[EX A]:
39