instruction:
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.
question:
a chef used 15 apples to make a pie . now he has 4 apples left . how many apples did he have before he made the pie ?
answer:
19


question:
during a sale a shoe store sold 2 pairs of sneakers 4 pairs of sandals and 11 pairs of boots . how many pairs of shoes did the store sell ?
answer:
17


question:
marcus and his friends are starting a recycling project to help the school raise some money for charity . they were tasked to collect different materials and create useful things from those . if marcus was able to gather 25 milk bottles and john was able to gather 20 milk bottles how many milk bottles do they have available for recycling ?
answer:

45


