During the Arbor Day, the teacher took us to plant trees. We have to plant one tree every 5 meters on the side of the 280-meter road. Remember to plant both ends. How many trees will we plant in total?
植树节时，老师带我们去植树，我们要在280米的道路一旁每隔5米栽一棵，记住两头都要栽，一共要栽多少棵？
<gadget id="calculator">280 / 5</gadget>
<output>56</output>

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

<result>57</result>