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.

Context: Josh had 3 marbles in his collection. He found 6 marbles while he lost 5 marbles. 

 Question: How many more marbles did he find than those he lost?
1

Context: A grocery store had 81 bottles of regular soda, 60 bottles of diet soda and 60 bottles of lite soda. 

 Question: How many more bottles of regular soda did they have than diet soda?
21

Context: 6 birds and 3 storks were sitting on the fence. 2 more storks came to join them. 

 Question: How many more birds than storks are sitting on the fence?

1