123*5.67+8.77*567=how much.
123*5.67+8.77*567=多少．
<gadget id="calculator">123 * 5.67</gadget>
<output>697.41</output>

<gadget id="calculator">8.77 * 567</gadget>
<output>4_972.59</output>

<gadget id="calculator">697.41 + 4_972.59</gadget>
<output>5_670</output>

<result>5_670</result>