There are 5 classes in the fifth grade of the experimental primary school. Each class donates 30 pots of flowers. After arranging the flower beds, there are still 25 pots left. How many pots are used to arrange the flower beds?
实验小学五年级有5个班，每班捐30盆花，布置花坛用去了若干盆后还剩25盆，布置花坛用去多少盆？
<gadget id="calculator">30 * 5</gadget>
<output>150</output>

<gadget id="calculator">150 - 25</gadget>
<output>125</output>

<result>125</result>