Give the step-by-step reasoning process and then the final answer. Nathan went to the arcade. He played the air hockey game 2 times and the basketball game 4 times. If each game cost 3 tokens, how many tokens did he use?
Nathan played a total of 2 air hockey + 4 basketball = 6 games. This cost him 6 games x 3 tokens each = 18 tokens.
The final answer: 18.