9.99*22.2+33.3*3.34.
9.99*22.2+33.3*3.34．
<gadget id="calculator">9.99 * 22.2</gadget>
<output>221.778</output>

<gadget id="calculator">33.3 * 3.34</gadget>
<output>111.222</output>

<gadget id="calculator">221.778 + 111.222</gadget>
<output>333</output>

<result>333</result>