Xiao Ming took some money to the stationery store. He bought 5 exercise books, each exercise book was 1.5 yuan, and Xiao Ming still had 2.5 yuan left. How much did he bring to the stationery store?
小明带一些钱去文具店，他买了5个练习本，每个练习本1.5元，小明还剩下2.5元，他去文具店带了多少元？
<gadget id="calculator">5 * 1.5</gadget>
<output>7.5</output>

<gadget id="calculator">7.5 + 2.5</gadget>
<output>10</output>

<result>10</result>