A 100-meter road, put fruit boxes from the beginning to the end, and put one every 20 meters, how many fruit boxes should be placed on this street.
一条100米的路，从头到尾放果皮箱，每隔20米放一个，这条街要放多少个果皮箱．
<gadget id="calculator">100 / 20</gadget>
<output>5</output>

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

<result>6</result>