Paco had 20 cookies. He ate 36 cookies and gave 17 of them to his friend. How many more cookies did he eat than those he gave to his friend?
Paco had 20 cookies. 
He ate 36 cookies. 
He gave 17 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 problem by subtracting the number of cookies he gave to his friend from the total number of cookies he ate. 

36 - 17 = 19 

Paco ate 19 more cookies than those he gave to his friend.