(559+197)/27*16．
(559+197)/27*16．
<gadget id="calculator">559 + 197</gadget>
<output>756</output>

<gadget id="calculator">756 / 27</gadget>
<output>28</output>

<gadget id="calculator">28 * 16</gadget>
<output>448</output>

<result>448</result>