Teacher Li spent 245 yuan to buy books for the school and 184 yuan to buy sporting goods. He brought 500 yuan. How much money is left?
李老师给学校买图书用了245元，买体育用品用了184元，他带了500元，还剩多少元？
<gadget id="calculator">500 - 245 - 184</gadget>
<output>71</output>

<result>71</result>