In summer, a frog can catch about 900 pests in 6 days. According to this calculation, how many pests can a frog catch in a month? (A month is calculated as 30 days)
夏季里一只青蛙6天大约能捕捉900只害虫，照这样计算，一只青蛙一个月大约能捕捉多少只害虫？(一个月按30天计算)
<gadget id="calculator">900 / 6</gadget>
<output>150</output>

<gadget id="calculator">150 * 30</gadget>
<output>4_500</output>

<result>4_500</result>