Mr. Huang has 548 yuan. After going to Xinhua Bookstore to buy 5 dictionaries with a unit price of 48 yuan, how much money is left?
黄老师有548元，去新华书店买了5本单价为48元的词典后，还剩下几元？
<gadget id="calculator">5 * 48</gadget>
<output>240</output>

<gadget id="calculator">548 - 240</gadget>
<output>308</output>

<result>308</result>