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.

it takes mike 98 minutes to walk to school . if he rides a bicycle to school it would save him 64 minutes . how much time did mike save ?
34

there are 33 rose bushes and 37 oak trees currently in the park . park workers will plant more rose bushes today . when the workers are finished there will be 98 rose bushes in the park . how many rose bushes did the workers plant today ?
65

since the townspeople requested that he makes a chocolate cake he will need 306 lbs . of cocoa powder . if the mayor already gave him 259 lbs . how much cocoa powder does he still need ?
47