There is a 300-meter-long path in the school. Trees need to be planted on both sides of the path. If trees are planted every 6 meters, how many saplings are needed in total?
学校有一条长300米的小路，要在小路两边栽树，每隔6米栽一棵如果两边都要栽树，共需要多少棵树苗？
<gadget id="calculator">300 / 6</gadget>
<output>50</output>

<gadget id="calculator">50 + 1</gadget>
<output>51</output>

<gadget id="calculator">51 * 2</gadget>
<output>102</output>

<result>102</result>