How much more is the "3" in the tens of thousands than the "3" in the thousands.
万位上的"3"比千位上的"3"表示的数多多少．
<gadget id="calculator">3 * 10_000</gadget>
<output>30_000</output>

<gadget id="calculator">3 * 1_000</gadget>
<output>3_000</output>

<gadget id="calculator">30_000 - 3_000</gadget>
<output>27_000</output>

<result>27_000</result>