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.

[EX Q]: Context: A waiter had 3 customers. After some left he still had 4 customers. 

 Question: How many more customers stayed behind than those that left?
[EX A]: 5

[EX Q]: Context: There were 7 roses and 12 orchids in the vase. Jessica cut some more roses and orchids from her flower garden. There are now 11 roses and 20 orchids in the vase. 

 Question: How many more orchids than roses are there in the vase now?
[EX A]: 9

[EX Q]: Context: Danny collects bottle caps. He threw away 6 of the old ones at the park while he found 50 bottle caps new ones. Now he has 60 bottle caps in his collection. 

 Question: How many more bottle caps did danny find at the park than those he threw away?
[EX A]:
44

