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:
There are 2 apples in a pile on the desk . Each apple comes in a package of 7 . 4 apples are added to the pile . How many apples are there in the pile ?
answer:
6

question:
Josh had 16 marbles in his collection . He lost 7 marbles . How many marbles does he have now ?
answer:
9

question:
Norma starts with 47 bananas . She loses 45 . How many bananas does Norma end with ?
answer:
2