Subtract 1.02 from 20.02, subtract 5 times in a row, what is the result
20.02减去1.02，连续减5次，结果是多少
<gadget id="calculator">1.02 * 5</gadget>
<output>5.1</output>

<gadget id="calculator">20.02 - 5.1</gadget>
<output>14.92</output>

<result>14.92</result>