13.5*8528.52-8.52*13513.5=how much.
13.5*8528.52-8.52*13513.5=多少．
<gadget id="calculator">13.5 * 8_528.52</gadget>
<output>115_135.02</output>

<gadget id="calculator">8.52 * 13_513.5</gadget>
<output>115_135.02</output>

<gadget id="calculator">115_135.02 - 115_135.02</gadget>
<output>0</output>

<result>0</result>