Xiao Ming, who is in high school, spends an average of 12 yuan a day on school living expenses, and he spends an average of 280 days at school every year. How much does he need for living expenses every year?
读高中的小明在学校平均每天生活费要12元，他平均每年有280天在学校．他每年要多少生活费？
<gadget id="calculator">12 * 280</gadget>
<output>3_360</output>

<result>3_360</result>