Danny collects bottle caps and wrappers. He found 15 bottle caps and 18 wrappers at the park. Now he has 67 wrappers and 35 bottle caps in his collection. How many more wrappers than bottle caps does danny have now?
Danny found 15 bottle caps and 18 wrappers at the park. 

That means he had 15 bottle caps and 18 wrappers to start with. 

Now he has 67 wrappers and 35 bottle caps in his collection. 

That means he has 67 - 18 = 49 wrappers and 35 - 15 = 20 bottle caps more than he started with. 

So he has 49 - 20 = 29 more wrappers than bottle caps.