To protect the environment, naughty dad reduced driving to work 156 times last year. If you can save 60 yuan each time, how much did he save last year?
为保护环境，淘气的爸爸去年减少开车上班156次．如果每次可节约60元费用，他去年节约了多少元？
<gadget id="calculator">60 * 156</gadget>
<output>9_360</output>

<result>9_360</result>