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? Let's think first. Chain of thought:
He won 100 * .5 = 50 matches in his first 100 games. In his next 100 games, he won 100 * .6 = 60 matches. So in total, he won 50 + 60 = 110 matches.
Therefore, the answer is 110.