(2008-(8.5*8.5-1.5*1.5)/10)/30+3.3．
(2008-(8.5*8.5-1.5*1.5)/10)/30+3.3．
<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_008 - 7</gadget>
<output>2_001</output>

<gadget id="calculator">2_001 / 30</gadget>
<output>667/10 = around 66.7</output>

<gadget id="calculator">(667/10) + 3.3</gadget>
<output>70</output>

<result>70</result>