The product of two factors is 0.2, if one of the factors is enlarged by 100 times and the other factor remains unchanged, what should be the product.
两个因数的积为0.2，如果其中一个因数扩大100倍，另一个因数不变，积应该是多少．
<gadget id="calculator">0.2 * 100</gadget>
<output>20</output>

<result>20</result>