There are 24 cans per box, and one can costs 6.8 yuan. If you buy 2 boxes, how much will it cost?
每箱露24听，一听露要6.8元，如果购买2箱，需要多少钱？
<gadget id="calculator">24 * 2</gadget>
<output>48</output>

<gadget id="calculator">6.8 * 48</gadget>
<output>326.4</output>

<result>326.4</result>