There is a three-digit number, the hundreds place is 1, the tens place is 5, and the ones place is 0, what is its triple?
有一个三位数，百位上是1，十位上是5，个位上是0，它的3倍是多少．
<gadget id="calculator">150 * 3</gadget>
<output>450</output>

<result>450</result>