2.005*390-20.05*41+200.5*0.2.
2.005*390-20.05*41+200.5*0.2．
<gadget id="calculator">2.005 * 390</gadget>
<output>781.95</output>

<gadget id="calculator">20.05 * 41</gadget>
<output>822.05</output>

<gadget id="calculator">781.95 - 822.05</gadget>
<output>-40.1</output>

<gadget id="calculator">200.5 * 0.2</gadget>
<output>40.1</output>

<gadget id="calculator">(-40.1) + 40.1</gadget>
<output>0</output>

<result>0</result>