2009/7*5+574=how much.
2009/7*5+574=多少．
<gadget id="calculator">2_009 / 7</gadget>
<output>287</output>

<gadget id="calculator">287 * 5</gadget>
<output>1_435</output>

<gadget id="calculator">1_435 + 574</gadget>
<output>2_009</output>

<result>2_009</result>