321*3.3-123/(3/10)=how much.
321*3.3-123/(3/10)=多少．
<gadget id="calculator">321 - 123</gadget>
<output>198</output>

<gadget id="calculator">10 / 3</gadget>
<output>10/3 = around 3.333333</output>

<gadget id="calculator">198 * (10/3)</gadget>
<output>660</output>

<result>660</result>