If one factor is enlarged by 10 times and the other factor is reduced by 100 times, how many times will the product be reduced?
一个因数扩大10倍，另一个因数缩小100倍，积缩小多少倍
<gadget id="calculator">2 * 300</gadget>
<output>600</output>

<gadget id="calculator">20 * 3</gadget>
<output>60</output>

<gadget id="calculator">600 / 60</gadget>
<output>10</output>

<result>10</result>