Xinhua Bookstore sold 8 copies of "Children's Stories" in the morning and another 15 copies in the afternoon. A total of 72 yuan was sold in the morning. How much did Xinhua Bookstore sell "Children's Stories" on this day?
新华书店上午卖了8本《儿童故事》，下午又卖了15本．上午共卖了72元，这一天，新华书店《儿童故事》一共卖了多少元？
<gadget id="calculator">72 / 8</gadget>
<output>9</output>

<gadget id="calculator">8 + 15</gadget>
<output>23</output>

<gadget id="calculator">9 * 23</gadget>
<output>207</output>

<result>207</result>