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:
At the schools book fair Sam bought 13 adventure books and 17 mystery books . If 15 of the books were used , how many new books did he buy ?
answer:
15


question:
Nell collects baseball cards . She had 304 cards . She gave some of her cards to Jeff and now has 276 cards left . How many cards did Nell give to Jeff ?
answer:
28


question:
There are 54 scissors in the drawer . Keith placed 22 more scissors in the drawer . How many scissors are now there in all ?
answer:

76