A road is 2800 meters long. From the starting point to the end point, one pole is erected every 50 meters. How many poles should be erected in total?
一条路长2800米，从起点到终点，每50米立一根电线杆，一共要立多少根．
<gadget id="calculator">2_800 / 50</gadget>
<output>56</output>

<gadget id="calculator">56 + 1</gadget>
<output>57</output>

<result>57</result>