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:
Vanessa had 16 music files and 48 video files on her flash drive . If she deleted 30 of the files , how many files were still on her flash drive ?
answer:
34

question:
In fourth grade there were 33 students at the start of the year . During the year 18 students left and 14 new students came to school . How many students were in fourth grade at the end ?
answer:
29

question:
Joan has 8 orange balloons but lost 2 of them . How many orange balloons does Joan have now ?
answer:
6