Adding a 0 to the end of an integer makes the new number larger than the original number by how many times.
在一个整数后面添一个0，那么新的数比原来的数大多少倍．
<gadget id="calculator">100 - 10</gadget>
<output>90</output>

<gadget id="calculator">90 / 10</gadget>
<output>9</output>

<result>9</result>