instruction:
You are given a math word problem and you are supposed to apply a single mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report final the numerical answer.
question:
18 children were riding on the bus . At the bus stop , some more children got on the bus . Then there were 25 children altogether on the bus . How many children got on the bus at the bus stop ?
answer:
7


question:
The clown blew up 47 balloons . Then he blew up 13 more balloons . How many balloons does the clown have now ?
answer:
60


question:
Carolyn starts with 47 marbles and 6 oranges . She shares 42 with Diana . How many marbles does Carolyn end with ?
answer:

5