100.5*27-0.5*27.
100.5*27-0.5*27．
<gadget id="calculator">100.5 * 27</gadget>
<output>2_713.5</output>

<gadget id="calculator">0.5 * 27</gadget>
<output>13.5</output>

<gadget id="calculator">2_713.5 - 13.5</gadget>
<output>2_700</output>

<result>2_700</result>