Xiao Ming went to climb a mountain. He walked 629 meters up the mountain, and 158 meters less than the uphill. How many meters did Xiao Ming go down the mountain?
小明去爬山，他上山行了629米，下山比上山少行了158米，小明下山行了多少米？
<gadget id="calculator">629 - 158</gadget>
<output>471</output>

<result>471</result>