The distance between Wang Village and Li Village is 4 kilometers, and a telephone pole is erected every 800 meters. How many poles are needed in total?
王村和李村相距4千米，每隔800米立一根电线杆，一共需要多少根．
<gadget id="calculator">1_000 / 800</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">4 * (5/4)</gadget>
<output>5</output>

<gadget id="calculator">5 + 1</gadget>
<output>6</output>

<result>6</result>