In Sam's first 100 matches he won 50% of matches.  In his next 100 games, he won 60% of matches.  How many total matches did he win?
He won 100*.5=<T>multiply(100, 0.5)=50.0 matches in his first 100 games
In his next 100 games, he won 100*.6=<T>multiply(100, 0.6)=60.0 matches
So in total, he won 50+60=<T>add(50, 60)=110 matches
