There were 3 dollars in Olivia's wallet. She collected 49 more dollars from an atm. After she visited a supermarket there were 49 dollars left. How much more money did she collect at the atm than she spent at the supermarket?
Olivia started with 3 dollars in her wallet. 

She collected 49 more dollars from the ATM, so now she has 52 dollars. 

She spent 49 dollars at the supermarket, so now she has 3 dollars. 

Olivia collected 49 more dollars from the ATM than she spent at the supermarket.