A road is 500 meters long. Starting from one end of the road, a tree is planted every 5 meters. (Both ends are planted) How many trees should be planted in total?
一条大路长500米，从大路的一端开始，每隔5米栽一棵树，(两端都栽)一共要栽多少棵树？
<gadget id="calculator">500 / 5</gadget>
<output>100</output>

<gadget id="calculator">100 + 1</gadget>
<output>101</output>

<result>101</result>