808*0.125-1600/16.
808*0.125-1600/16．
<gadget id="calculator">808 * 0.125</gadget>
<output>101</output>

<gadget id="calculator">1_600 / 16</gadget>
<output>100</output>

<gadget id="calculator">101 - 100</gadget>
<output>1</output>

<result>1</result>