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: A waiter had 3 customers. After some more arrived he had 8 customers. 

 Question: How many new customers arrived?
answer:
5


question:
Context: Next on his checklist is wax to stick the feathers together and colors to paint them. He needs a total of 49 g of colors to paint them. If the feathers require 288 g of wax and right now he just needs 260 g 

 Question: How many grams of wax does he already have?
answer:
28


question:
Context: Baker made 149 cakes and 91 pastries. If he sold 10 cakes and 90 pastries 

 Question: How many cakes would baker still have?
answer:

139