Plant saplings on one side of a road that is 800 meters long, and plant one tree every 10 meters. How many trees should be planted in total?
在一条公路长800米的一边栽上树苗，每10米栽一棵，一共要栽多少棵．
<gadget id="calculator">800 / 10</gadget>
<output>80</output>

<gadget id="calculator">80 + 1</gadget>
<output>81</output>

<result>81</result>