instruction:
You are given a math word problem and you are supposed to apply a single mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report final the numerical answer.
question:
Ruth starts with 89 apples . She shares 5 with Peter . How many apples does Ruth end with ?
answer:
84

question:
Ronald went to the store 2 times last month . He buys 10 bananas each time he goes to the store . How many bananas did Ronald buy last month ?
answer:
20

question:
There are 107 walnut trees currently in the park . Park workers will plant 104 walnut trees today . How many walnut trees will the park have when the workers are finished ?
answer:
211