Unknown Story

This is Johnny. He is a very good boy. His parents love him. He does everything what his parents ask him to do.
My Family
Since he completed his chores of his last week till now, his dad wanted to reward him with $50.
Whoa! thanks dad. I promise that I will use it properly.
Here you go son, buy what ever you want. You earned this!
He called his best friend Tom and left off to the market to buy something.
I got 50 bucks from my dad by doing chores.
Lets go buy some stuff.
What!!! My dad only give $5 and its been a year!!!
They bought a toy gun from the store.
Lets buy this toy gun. Its only for 20 bucks.
Sure! Why not!
On the way back home, he found a book sale
Its $25
Yeah! I will buy it.
Books for sale!! From $12 to $40
Isn't that your favorite cartoon character's book?!
Back at home, his dad asked him how did it go?
I spent $20 on a toy gun and $25 on my favorite cartoon character's book, so I spent 25+20=$45 totally giving me a balance of $5.
Thanks dad!!
So how much did you spend?
You found the total by adding it all! I'm proud of you!
The end