(2007-(8.5*8.5-1.5*1.5)/10)/160-0.3．
(2007-(8.5*8.5-1.5*1.5)/10)/160-0.3．
<gadget id="calculator">8.5 * 8.5</gadget>
<output>72.25</output>

<gadget id="calculator">1.5 * 1.5</gadget>
<output>2.25</output>

<gadget id="calculator">72.25 - 2.25</gadget>
<output>70</output>

<gadget id="calculator">70 / 10</gadget>
<output>7</output>

<gadget id="calculator">2_007 - 7</gadget>
<output>2_000</output>

<gadget id="calculator">2_000 / 160</gadget>
<output>25/2 = around 12.5</output>

<gadget id="calculator">(25/2) - 0.3</gadget>
<output>12.2</output>

<result>12.2</result>