Calculation: 30.65-(7.65+5.4)
计算：30.65-(7.65+5.4)
<gadget id="calculator">7.65 + 5.4</gadget>
<output>13.05</output>

<gadget id="calculator">30.65 - 13.05</gadget>
<output>17.6</output>

<result>17.6</result>