Danny collects bottle caps and wrappers. He found 38 bottle caps and 34 wrappers at the park. Now he has 23 wrappers and 22 bottle caps in his collection. How many more wrappers than bottle caps does danny have now?
Danny found 38 bottle caps and 34 wrappers at the park. 
That means he started with 38 + 34 = 72 pieces in total. 
Now he has 23 wrappers and 22 bottle caps in his collection. 
That means he has 23 + 22 = 45 pieces in total. 

So we need to find out how many pieces he has now, and how many pieces he had at the beginning. 

We know he has 45 pieces now. 
We also know he started with 72 pieces. 

We can find out how many pieces he has now by subtracting the number of pieces he started with from the number of pieces he has now: 

45 - 72 = 

That means he has 27 fewer pieces now.