You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
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Question: Arthur baked 35 muffins . How many more muffins does Arthur have to bake to have 83 muffins ?

Answer: 48


Question: There are 34 dogwood trees currently in the park . Park workers will plant 49 dogwood trees today . How many dogwood trees will the park have when the workers are finished ?

Answer: 83


Question: Larry starts with 91 cards . 17 are eaten by a hippopotamus . How many cards does Larry end with ?

Answer:
74