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.

Q: Context: Because of the decision Sofia asked the students to suggest specific types of food. If 479 students suggested adding mashed potatoes while 489 suggested adding bacon to the menu 

 Question: How many more students suggested bacon than those that suggested mashed potatoes?

A: 10
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Q: Context: Paco had 37 sweet cookies and 11 salty cookies. He ate 5 sweet cookies and 2 salty cookies. 

 Question: How many more sweet cookies than salty cookies did he eat?

A: 3
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Q: Context: Edward spent $ 16 to buy books and $ 8 to buy pens. Now he has $ 19. 

 Question: How much more did Edward spend on books than pens?

A:
8
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