If one factor is multiplied by 10 and the other factor is multiplied by 5, how many times the product will be multiplied.
一个因数扩大10倍，另一个因数扩大5倍，积扩大多少倍倍．
<gadget id="calculator">5 * 10</gadget>
<output>50</output>

<result>50</result>