What is the product of 60 multiplied by the difference between 543 and 489?
60同543与489的差相乘，积是多少？
<gadget id="calculator">543 - 489</gadget>
<output>54</output>

<gadget id="calculator">60 * 54</gadget>
<output>3_240</output>

<result>3_240</result>