instruction:
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.
question:
Context: Danny collects bottle caps and wrappers. He found 71 bottle caps and 24 wrappers at the park. Now he has 28 bottle caps and 16 wrappers in his collection. 

 Question: How many more bottle caps than wrappers does danny have now?
answer:
12


question:
Context: Nell collects baseball cards. She had 242 cards. She gave 136 of her cards to Jeff. 

 Question: How many cards does Nell have left?
answer:
106


question:
Context: The Razorback shop makes $ 210 dollars off each jersey and $ 240 off each t-shirt. During the Arkansas and Texas tech game they sold 177 t-shirts and 23 jerseys. 

 Question: How much more does a t-shirt cost than a jersey?
answer:

30