1 campers went rowing in the morning. 42 campers went rowing in the afternoon. How many more campers went rowing in the afternoon than in the morning?
1. How many campers went rowing in the morning? 
There is 1 camper. 

2. How many campers went rowing in the afternoon? 
There are 42 campers. 

3. How many more campers went rowing in the afternoon than in the morning? 
There are 41 more campers.