15 trucks line up to transport cement, the distance between every two trucks is 18 meters, and the length of each truck is 4 meters, how many meters is the total length of the team?
15辆卡车排成一队运送水泥，每两辆卡车间距为18米，每辆卡车车身长4米，车队共长多少米？
<gadget id="calculator">15 - 1</gadget>
<output>14</output>

<gadget id="calculator">18 * 14</gadget>
<output>252</output>

<gadget id="calculator">15 * 4</gadget>
<output>60</output>

<gadget id="calculator">252 + 60</gadget>
<output>312</output>

<result>312</result>