0.078*78+0.039*20+0.156*6=how much.
0.078*78+0.039*20+0.156*6=多少．
<gadget id="calculator">0.078 * 78</gadget>
<output>6.084</output>

<gadget id="calculator">0.039 * 20</gadget>
<output>0.78</output>

<gadget id="calculator">0.156 * 6</gadget>
<output>0.936</output>

<gadget id="calculator">6.084 + 0.78 + 0.936</gadget>
<output>7.8</output>

<result>7.8</result>