Paco had 41 cookies. He gave 9 cookies to his friend and ate 18 cookies. How many more cookies did he eat than those he gave to his friend?
Paco had 41 cookies. He gave 9 cookies to his friend. 

This means that he had 41 - 9 = 32 cookies left. 

Then he ate 18 cookies. This means that he had 32 - 18 = 14 cookies left. 

So he ate 18 - 9 = 9 more cookies than those he gave to his friend.