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:
A teacher had 6 worksheets to grade . If she graded 4 , but then another 18 were turned in , how many worksheets would she have to grade ?
answer:
20

question:
Haley had 27 music files and 42 video files on her flash drive . If she deleted 11 of the files , how many files were still on her flash drive ?
answer:
58

question:
There are 24 bicycles and 14 tricycles in the storage area at Danny 's apartment building . Each bicycle has 2 wheels and each tricycle has 3 wheels . How many wheels are there in all ?
answer:
90