The department store sells 5 boxes of tops, 20 pieces in each box, and 42 yuan each. How much is it sold in total?
百货商店卖出5箱上衣，每箱20件，每件42元，一共卖了多少元？
<gadget id="calculator">20 * 5 * 42</gadget>
<output>4_200</output>

<result>4_200</result>