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.

Example input: robin bought 11 sodas for her and her friends . if they only drank 3 of them how many extras did she have ?
Example output: 8
Example explanation: Extra sodas is total - drank = 11-3 = 8
Q: kendra learns 12 new spelling words each week . her goal is to learn 60 new words before her 8 birthday . she has already learned 36 new words . how many more words does kendra need to learn ?
A:
24