Calculation by simple method: 8.01-(1.1-0.68-0.32).
简便方法计算：8.01-(1.1-0.68-0.32)．
<gadget id="calculator">1.1 - 0.68 - 0.32</gadget>
<output>0.1</output>

<gadget id="calculator">8.01 - 0.1</gadget>
<output>7.91</output>

<result>7.91</result>