Paco had 36 cookies. He ate 13 cookies and gave 12 of them to his friend. How many more cookies did he eat than those he gave to his friend?
Paco had 36 cookies. 
He ate 13 cookies. 
He gave 12 cookies to his friend. 

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

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

13 - 12 = 1 

Paco ate 1 more cookie than those he gave to his friend.