Subtract the sum of 12.58 and 3.42 from 102.58. What is the difference?
从102.58里减去12.58与3.42的和，差是多少？
<gadget id="calculator">12.58 + 3.42</gadget>
<output>16</output>

<gadget id="calculator">102.58 - 16</gadget>
<output>86.58</output>

<result>86.58</result>