Simple operation: 5.5*17.3+2.7*5.5.
简便运算：5.5*17.3+2.7*5.5．
<gadget id="calculator">5.5 * 17.3</gadget>
<output>95.15</output>

<gadget id="calculator">2.7 * 5.5</gadget>
<output>14.85</output>

<gadget id="calculator">95.15 + 14.85</gadget>
<output>110</output>

<result>110</result>