The school cafeteria bought some eggs, put them into 10 baskets, each basket contained 30 eggs, and there were 15 eggs left, how many eggs were bought in total?
学校食堂买来一些鸡蛋，装了10篮，每篮装30个，还剩15个，一共买来多少个鸡蛋？
<gadget id="calculator">10 * 30</gadget>
<output>300</output>

<gadget id="calculator">300 + 15</gadget>
<output>315</output>

<result>315</result>