The product of two numbers is 450, one multiplier is multiplied by 20, and the other multiplier remains unchanged. What is the product now?
两个数的积是450，一个乘数乘20，另一个乘数不变，现在的积是多少．
<gadget id="calculator">450 * 20</gadget>
<output>9_000</output>

<result>9_000</result>