river embankment is 320 meters long. Trees are planted along both sides of the river. From one end to the other end, a tree is planted every 5 meters. How many trees are planted on both sides?
一条河堤长320米，沿河的两旁栽树，从一端起到另一端止，每隔5米栽一棵树．两旁共栽多少棵树？
<gadget id="calculator">320 / 5</gadget>
<output>64</output>

<gadget id="calculator">64 + 1</gadget>
<output>65</output>

<gadget id="calculator">65 * 2</gadget>
<output>130</output>

<result>130</result>