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.

Context: In a school there are 569 girls and 236 boys. 

 Question: How many more girls than boys does the school have?
333

Context: You have read 8 books from the ' crazy silly school ' series. If there are a total of 14 different books in the ' crazy silly school ' series 

 Question: How many more do you still have to read?
6

Context: David did 30 more push-ups than Zachary in gym class today. If David did 37 push-ups 

 Question: How many push-ups did Zachary do?

7