In spring, the school plans to plant 332 trees, and 24 trees will be planted every day for the first 8 days. Afterwards, to improve work efficiency, 28 trees will be planted every day. How many days will it take to complete the task?
春天，学校计划植树332棵，前8天每天植树24棵，以后提高工作效率，每天植树28棵，问还需几天完成任务？
<gadget id="calculator">24 * 8</gadget>
<output>192</output>

<gadget id="calculator">332 - 192</gadget>
<output>140</output>

<gadget id="calculator">140 / 28</gadget>
<output>5</output>

<result>5</result>