There are 8 pieces of a tile in each box, and each piece costs 45 yuan. Aunt Zhang bought 5 boxes of such tiles. How much is the total cost?
一种瓷砖每箱有8片，每片45元，张阿姨买了5箱这样的瓷砖，一共用去多少元？
<gadget id="calculator">45 * 8 * 5</gadget>
<output>1_800</output>

<result>1_800</result>