The product of two numbers is 450, one multiplier is increased by 10 times, and the other multiplier remains the same, what is the product now.
两个数的积是450，一个乘数扩大10倍，另一个乘数不变，现在的积是多少．
<gadget id="calculator">450 * 10</gadget>
<output>4_500</output>

<result>4_500</result>