Xiao Ming, his father, and his mother went on a trip. They bought 3 train tickets at 225 yuan each, and they took the train when they came back. How much did they spend on the train tickets for this trip?
小明、爸爸、妈妈一家去旅游，去的时候买了3张火车票，每张225元，回来还乘火车，这次旅游买火车票一共花了多少钱？
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">225 * 6</gadget>
<output>1_350</output>

<result>1_350</result>