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.

zoe picked 5 apples from her tree . now the tree has 6 apples still on it . what 's the difference between the number of apples zoe picked and now the tree has ?
1

mrs. sheridan has 17 cats . mr. sheridan gave her 14 more cats . how many cats does mrs. sheridan have altogether ?
31

chris has 18 soccer cards . his friend charlie has 32 cards . how many fewer cards does chris have ?
14