(0.125*8-0.5)/0.25．
(0.125*8-0.5)/0.25．
<gadget id="calculator">0.125 * 8</gadget>
<output>1</output>

<gadget id="calculator">1 - 0.5</gadget>
<output>0.5</output>

<gadget id="calculator">0.5 / 0.25</gadget>
<output>2</output>

<result>2</result>