For Gwen's birthday she received 43 dollars from her mom. Her dad gave her 21 more dollars. If she spent 5 dollars. How much money did she still have?
Gwen's mom gave her 43 dollars. 
Gwen's dad gave her 21 more dollars. 
That means she had a total of 43 + 21 = 64 dollars. 
If she spent 5 dollars, she would have 64 - 5 = 59 dollars left.