Subtract (1/10) from 10 each time, how many times you subtract to get 0.
从10里每次减去(1/10)，减去多少次得0．
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">10 / (1/10)</gadget>
<output>100</output>

<result>100</result>