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:
Paige had 8 songs on her mp3 player . If she deleted 5 old songs from it and then added 30 new songs , how many songs does she have on her mp3 player ?
answer:
33


question:
John made 6 dollars mowing lawns and 18 dollars weed eating . If he only spent 3 dollar a week , how long would the money last him ?
answer:
8


question:
Mary had 21 dimes and 38 pennies in her bank . Her dad borrowed 18 pennies from Mary . How many pennies does she have now ?
answer:

20