You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
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Question: A worksheet had 2 problems on it . If a teacher had 14 worksheets to grade and had already graded 7 of them , how many more problems does she have to grade ?

Answer: 14

Question: Sally had 27 cards . Dan gave her 41 new cards . Sally bought 20 cards . How many cards does Sally have now ?

Answer: 88

Question: Rachel bought 7 new chairs and 3 new tables for her house . If she spent 4 minutes on each piece furniture putting it together , how many minutes did it take her to finish ?

Answer:
40