0.3+0.6+0.3*0.6-0.3/0.6.
0.3+0.6+0.3*0.6-0.3/0.6．
<gadget id="calculator">0.3 * 0.6</gadget>
<output>0.18</output>

<gadget id="calculator">0.3 / 0.6</gadget>
<output>0.5</output>

<gadget id="calculator">0.18 - 0.5</gadget>
<output>-0.32</output>

<gadget id="calculator">0.3 + 0.6 + (-0.32)</gadget>
<output>0.58</output>

<result>0.58</result>