There is a row of willow trees planted by the lake, and the distance between every two trees is 6 meters. Xiao Ming ran from the first tree to the tenth tree, how many meters did he run in total?
湖边种着一排柳树，每两棵树之间相距6米，小明从第1棵树跑到第10棵树，一共跑了多少米．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">9 * 6</gadget>
<output>54</output>

<result>54</result>