instruction:
You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
question:
Mike joined his school 's band . He bought a trumpet for $ 145.16 , and a song book which was $ 5.84 . How much did Mike spend at the music store ?
answer:
151


question:
Sarah has 26 bottle caps . She buys 3 more . How many bottle caps does Sarah have in all ?
answer:
29


question:
A restaurant made 9 hamburgers to serve during lunch . Only 3 were actually served . How many hamburgers were over from lunch ?
answer:

6