2.5 If it is reduced to the original (1/10), then it is enlarged 1000 times.
2.5缩小到原来的(1/10)，再扩大1000倍是多少．
<gadget id="calculator">1_000 / 10</gadget>
<output>100</output>

<gadget id="calculator">2.5 * 100</gadget>
<output>250</output>

<result>250</result>