TASK DEFINITION: You are given a math word problem and you are supposed to only use subtraction on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
PROBLEM: Context: There were 16 roses and 3 orchids in the vase. Jessica cut some more roses and orchids from her flower garden. There are now 7 orchids and 13 roses in the vase. 

 Question: How many orchids did she cut?

SOLUTION: 4

PROBLEM: Context: Ed had 30 more marbles than Doug. Ed lost 21 of his marbles at the playground. If Ed had 91 marbles 

 Question: How many more marbles did Ed have than Doug then?

SOLUTION: 9

PROBLEM: Context: Jack received 3 emails in the afternoon, 6 emails in the morning and some more in the evening. If he received a total of 10 emails in the day 

 Question: How many emails did jack receive in the evening?

SOLUTION:
1