The toy factory wants to produce 360 pieces of toys. It plans to produce 40 pieces per day, but actually produces 20 more pieces per day than planned. How many days will the toy factory complete the task in advance?
玩具厂要生产360件玩具，计划每天生产40件，实际每天比计划多生产20件，玩具厂将提前几天完成任务？
<gadget id="calculator">360 / 40</gadget>
<output>9</output>

<gadget id="calculator">40 + 20</gadget>
<output>60</output>

<gadget id="calculator">360 / 60</gadget>
<output>6</output>

<gadget id="calculator">9 - 6</gadget>
<output>3</output>

<result>3</result>