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.
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Question: Context: Next on his checklist is wax to stick the feathers together. He needs 159 g of wax more. If the feathers require a total of 628 g of wax 

 Question: How many grams of wax does he already have?

Answer: 469


Question: Context: Haley grew 13 trees in her backyard. After a typhoon 6 died. 

 Question: How many more trees survived the typhoon than those that died?

Answer: 1


Question: Context: Paul had 108 books. After selling some books in a garage sale and giving 35 books to his friend he had 62 books left. 

 Question: How many books did he sell in the garage sale?

Answer:
11