Paco had 15 cookies. He ate 49 cookies and gave 36 of them to his friend. How many more cookies did he eat than those he gave to his friend?
Paco had 15 cookies. 
He ate 49 cookies. 
He gave 36 cookies to his friend. 

We want to know how many more cookies he ate than those he gave to his friend. 

We can solve this by subtracting the number of cookies he gave to his friend from the total number of cookies he ate: 

49 - 36 = 13

Paco ate 13 more cookies than those he gave to his friend.