3.6*31.4+81.4*6.4=how much.
3.6*31.4+81.4*6.4=多少．
<gadget id="calculator">3.6 * 31.4</gadget>
<output>113.04</output>

<gadget id="calculator">81.4 * 6.4</gadget>
<output>520.96</output>

<gadget id="calculator">113.04 + 520.96</gadget>
<output>634</output>

<result>634</result>