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: Paul got a box of 601 crayons and 406 erasers for his birthday. At the end of the school year he only had 336 crayons left while not having lost a single eraser. 

 Question: How many more erasers than crayons did he have left?
[A]: 70


[Q]: Context: A book has 2 chapters. The first chapter is 37 pages long. The second chapter is 80 pages long. 

 Question: How many more pages does the second chapter have than the first chapter?
[A]: 43


[Q]: Context: Rachel had to complete 2 pages of reading homework and 4 pages of math homework. 

 Question: How many more pages of math homework than reading homework did she have?
[A]:
2