The greening team wants to plant some trees, and plans to plant 300 trees a day, which will be completed in 6 days. Due to the weather, the task needs to be completed 2 days in advance. How many trees do you need to grow every day?
绿化队要种一些树，计划每天种树300棵，6天种完．由于天气原因，需要提前2天完成任务，每天需要多种多少棵树？
<gadget id="calculator">300 * 6</gadget>
<output>1_800</output>

<gadget id="calculator">6 - 2</gadget>
<output>4</output>

<gadget id="calculator">1_800 / 4</gadget>
<output>450</output>

<gadget id="calculator">450 - 300</gadget>
<output>150</output>

<result>150</result>