One factor is enlarged to 10 times of the original, and the other factor remains unchanged, how many times the product is enlarged to the original.
一个因数扩大到原来的10倍，另一个因数不变，积扩大到原来的多少倍．
<gadget id="calculator">20 * 3</gadget>
<output>60</output>

<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<gadget id="calculator">60 / 6</gadget>
<output>10</output>

<result>10</result>