The product of multiplying two numbers is 4.5. If one factor is enlarged by 100 times and the other factor is reduced by 10 times, what is the product?
两数相乘的积是4.5，如果一个因数扩大100倍，另一个因数缩小10倍，积是多少．
<gadget id="calculator">4.5 * 10</gadget>
<output>45</output>

<result>45</result>