(20000-2000-200-20)/20.
(20000-2000-200-20)/20．
<gadget id="calculator">20_000 - 2_000 - 200 - 20</gadget>
<output>17_780</output>

<gadget id="calculator">17_780 / 20</gadget>
<output>889</output>

<result>889</result>