The unit price of "Fairy Tale Book" is 12 yuan per book, and the school bought 125 copies. How much is the total cost?
《童话故事书》的单价是12元/本，学校买了125本，一共需要多少元？
<gadget id="calculator">12 * 125</gadget>
<output>1_500</output>

<result>1_500</result>