9999.99*22222.2+333333*333.334=how much.
9999.99*22222.2+333333*333.334=多少．
<gadget id="calculator">9_999.99 * 22_222.2</gadget>
<output>222_221_777.778</output>

<gadget id="calculator">333_333 * 333.334</gadget>
<output>111_111_222.222</output>

<gadget id="calculator">222_221_777.778 + 111_111_222.222</gadget>
<output>333_333_000</output>

<result>333_333_000</result>