The school bought 4 boxes of table tennis balls, 10 in each box, and bought 16 less badmintons than table tennis balls. How many badmintons did you buy?
学校买来了4盒乒乓球，每盒10个，买的羽毛球比乒乓球少16个，买了多少个羽毛球？
<gadget id="calculator">10 * 4</gadget>
<output>40</output>

<gadget id="calculator">40 - 16</gadget>
<output>24</output>

<result>24</result>