The school bought back 20 boxes of chalk, 24 boxes per box, and 5 yuan per box of chalk. How much does it cost in total?
学校买回20箱粉笔，每箱24盒，每盒粉笔5元，一共要多少钱？
<gadget id="calculator">20 * 24 * 5</gadget>
<output>2_400</output>

<result>2_400</result>